summaryrefslogtreecommitdiff
path: root/src/fontfile/fontdir.c
blob: 73ad3179b3d7e70be99fb54a1c1a58d67c9bc661 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
/* $XdotOrg: xc/lib/font/fontfile/fontdir.c,v 1.4 2005/07/03 07:01:00 daniels Exp $ */
/* $Xorg: fontdir.c,v 1.4 2001/02/09 02:04:03 xorgcvs Exp $ */

/*

Copyright 1991, 1998  The Open Group

Permission to use, copy, modify, distribute, and sell this software and its
documentation for any purpose is hereby granted without fee, provided that
the above copyright notice appear in all copies and that both that
copyright notice and this permission notice appear in supporting
documentation.

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Except as contained in this notice, the name of The Open Group shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from The Open Group.

*/
/* $XFree86: xc/lib/font/fontfile/fontdir.c,v 3.22 2003/07/07 16:40:11 eich Exp $ */

/*
 * Author:  Keith Packard, MIT X Consortium
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include    <X11/fonts/fntfilst.h>
#include    <X11/keysym.h>

#if HAVE_STDINT_H
#include <stdint.h>
#elif !defined(INT32_MAX)
#define INT32_MAX 0x7fffffff
#endif

Bool
FontFileInitTable (FontTablePtr table, int size)
{
    if (size < 0 || (size > INT32_MAX/sizeof(FontEntryRec))) 
	return FALSE;
    if (size)
    {
	table->entries = malloc(sizeof(FontEntryRec) * size);
	if (!table->entries)
	    return FALSE;
    }
    else
	table->entries = 0;
    table->used = 0;
    table->size = size;
    table->sorted = FALSE;
    return TRUE;
}

void
FontFileFreeEntry (FontEntryPtr entry)
{
    FontScalableExtraPtr   extra;
    int i;

    if (entry->name.name)
	free(entry->name.name);
    entry->name.name = NULL;

    switch (entry->type)
    {
    case FONT_ENTRY_SCALABLE:
	free (entry->u.scalable.fileName);
	extra = entry->u.scalable.extra;
	for (i = 0; i < extra->numScaled; i++)
	    if (extra->scaled[i].vals.ranges)
		free (extra->scaled[i].vals.ranges);
	free (extra->scaled);
	free (extra);
	break;
    case FONT_ENTRY_BITMAP:
	free (entry->u.bitmap.fileName);
	entry->u.bitmap.fileName = NULL;
	break;
    case FONT_ENTRY_ALIAS:
	free (entry->u.alias.resolved);
	entry->u.alias.resolved = NULL;
	break;
#ifdef NOTYET
    case FONT_ENTRY_BC:
	break;
#endif
    }
}

void
FontFileFreeTable (FontTablePtr table)
{
    int	i;

    for (i = 0; i < table->used; i++)
	FontFileFreeEntry (&table->entries[i]);
    free (table->entries);
}

FontDirectoryPtr
FontFileMakeDir(char *dirName, int size)
{
    FontDirectoryPtr	dir;
    int			dirlen;
    int			needslash = 0;
    char		*attrib;
    int			attriblen;

#if !defined(WIN32)
    attrib = strchr(dirName, ':');
#else
    /* OS/2 uses the colon in the drive letter descriptor, skip this */
    attrib = strchr(dirName+2, ':');
#endif
    if (attrib) {
	dirlen = attrib - dirName;
	attriblen = strlen(attrib);
    } else {
	dirlen = strlen(dirName);
	attriblen = 0;
    }
    if (dirName[dirlen - 1] != '/')
#ifdef NCD
    if (dirlen)     /* leave out slash for builtins */
#endif
	needslash = 1;
    dir = malloc(sizeof *dir + dirlen + needslash + 1 +
		 (attriblen ? attriblen + 1 : 0));
    if (!dir)
	return (FontDirectoryPtr)0;
    if (!FontFileInitTable (&dir->scalable, 0))
    {
	free (dir);
	return (FontDirectoryPtr)0;
    }
    if (!FontFileInitTable (&dir->nonScalable, size))
    {
	FontFileFreeTable (&dir->scalable);
	free (dir);
	return (FontDirectoryPtr)0;
    }
    dir->directory = (char *) (dir + 1);
    dir->dir_mtime = 0;
    dir->alias_mtime = 0;
    if (attriblen)
	dir->attributes = dir->directory + dirlen + needslash + 1;
    else
	dir->attributes = NULL;
    strncpy(dir->directory, dirName, dirlen);
    dir->directory[dirlen] = '\0';
    if (dir->attributes)
	strcpy(dir->attributes, attrib);
    if (needslash)
	strcat(dir->directory, "/");
    return dir;
}

void
FontFileFreeDir (FontDirectoryPtr dir)
{
    FontFileFreeTable (&dir->scalable);
    FontFileFreeTable (&dir->nonScalable);
    free(dir);
}

FontEntryPtr
FontFileAddEntry(FontTablePtr table, FontEntryPtr prototype)
{
    FontEntryPtr    entry;
    int		    newsize;

    /* can't add entries to a sorted table, pointers get broken! */
    if (table->sorted)
	return (FontEntryPtr) 0;    /* "cannot" happen */
    if (table->used == table->size) {
	newsize = table->size + 100;
	entry = realloc(table->entries, newsize * sizeof(FontEntryRec));
	if (!entry)
	    return (FontEntryPtr)0;
	table->size = newsize;
	table->entries = entry;
    }
    entry = &table->entries[table->used];
    *entry = *prototype;
    entry->name.name = malloc(prototype->name.length + 1);
    if (!entry->name.name)
	return (FontEntryPtr)0;
    memcpy (entry->name.name, prototype->name.name, prototype->name.length);
    entry->name.name[entry->name.length] = '\0';
    table->used++;
    return entry;
}

/*
 * Compare two strings just like strcmp, but preserve decimal integer
 * sorting order, i.e. "2" < "10" or "iso8859-2" < "iso8859-10" <
 * "iso10646-1". Strings are sorted as if sequences of digits were
 * prefixed by a length indicator (i.e., does not ignore leading zeroes).
 *
 * Markus Kuhn <Markus.Kuhn@cl.cam.ac.uk>
 */
#define Xisdigit(c) ('\060' <= (c) && (c) <= '\071')

static int strcmpn(const char *s1, const char *s2)
{
    int digits, predigits = 0;
    const char *ss1, *ss2;

    while (1) {
	if (*s1 == 0 && *s2 == 0)
	    return 0;
	digits = Xisdigit(*s1) && Xisdigit(*s2);
	if (digits && !predigits) {
	    ss1 = s1;
	    ss2 = s2;
	    while (Xisdigit(*ss1) && Xisdigit(*ss2))
		ss1++, ss2++;
	    if (!Xisdigit(*ss1) && Xisdigit(*ss2))
		return -1;
	    if (Xisdigit(*ss1) && !Xisdigit(*ss2))
		return 1;
	}
	if ((unsigned char)*s1 < (unsigned char)*s2)
	    return -1;
	if ((unsigned char)*s1 > (unsigned char)*s2)
	    return 1;
	predigits = digits;
	s1++, s2++;
    }
}


static int
FontFileNameCompare(const void* a, const void* b)
{
    FontEntryPtr    a_name = (FontEntryPtr) a,
		    b_name = (FontEntryPtr) b;

    return strcmpn(a_name->name.name, b_name->name.name);
}

void
FontFileSortTable (FontTablePtr table)
{
    if (!table->sorted) {
	qsort((char *) table->entries, table->used, sizeof(FontEntryRec),
	      FontFileNameCompare);
	table->sorted = TRUE;
    }
}

void
FontFileSortDir(FontDirectoryPtr dir)
{
    FontFileSortTable (&dir->scalable);
    FontFileSortTable (&dir->nonScalable);
    /* now that the table is fixed in size, swizzle the pointers */
    FontFileSwitchStringsToBitmapPointers (dir);
}

/*
  Given a Font Table, SetupWildMatch() sets up various pointers and state
  information so the table can be searched for name(s) that match a given
  fontname pattern -- which may contain wildcards.  Under certain
  circumstances, SetupWildMatch() will find the one table entry that
  matches the pattern.  If those circumstances do not pertain,
  SetupWildMatch() returns a range within the the table that should be
  searched for matching name(s).  With the information established by
  SetupWildMatch(), including state information in "private", the
  PatternMatch() procedure is then used to test names in the range for a
  match.
*/

#define isWild(c)   ((c) == XK_asterisk || (c) == XK_question)
#define isDigit(c)  (XK_0 <= (c) && (c) <= XK_9)

static int
SetupWildMatch(FontTablePtr table, FontNamePtr pat, 
	       int *leftp, int *rightp, int *privatep)
{
    int         nDashes;
    char        c;
    char       *t;
    char       *firstWild;
    char       *firstDigit;
    int         first;
    int         center,
                left,
                right;
    int         result;
    char	*name;

    name = pat->name;
    nDashes = pat->ndashes;
    firstWild = 0;
    firstDigit = 0;
    t = name;
    while ((c = *t++)) {
	if (isWild(c)) {
	    if (!firstWild)
		firstWild = t - 1;
	}
	if (isDigit(c)) {
	    if (!firstDigit)
		firstDigit = t - 1;
	}
    }
    left = 0;
    right = table->used;
    if (firstWild)
	*privatep = nDashes;
    else
	*privatep = -1;
    if (!table->sorted) {
	*leftp = left;
	*rightp = right;
	return -1;
    } else if (firstWild) {
	if (firstDigit && firstDigit < firstWild)
	    first = firstDigit - name;
	else
	    first = firstWild - name;
	while (left < right) {
	    center = (left + right) / 2;
	    result = strncmp(name, table->entries[center].name.name, first);
	    if (result == 0)
		break;
	    if (result < 0)
		right = center;
	    else
		left = center + 1;
	}
	*leftp = left;
	*rightp = right;
	return -1;
    } else {
	while (left < right) {
	    center = (left + right) / 2;
	    result = strcmpn(name, table->entries[center].name.name);
	    if (result == 0)
		return center;
	    if (result < 0)
		right = center;
	    else
		left = center + 1;
	}
	*leftp = 1;
	*rightp = 0;
	return -1;
    }
}

static int
PatternMatch(char *pat, int patdashes, char *string, int stringdashes)
{
    char        c,
                t;

    if (stringdashes < patdashes)
	return 0;
    for (;;) {
	switch (c = *pat++) {
	case '*':
	    if (!(c = *pat++))
		return 1;
	    if (c == XK_minus) {
		patdashes--;
		for (;;) {
		    while ((t = *string++) != XK_minus)
			if (!t)
			    return 0;
		    stringdashes--;
		    if (PatternMatch(pat, patdashes, string, stringdashes))
			return 1;
		    if (stringdashes == patdashes)
			return 0;
		}
	    } else {
		for (;;) {
		    while ((t = *string++) != c) {
			if (!t)
			    return 0;
			if (t == XK_minus) {
			    if (stringdashes-- < patdashes)
				return 0;
			}
		    }
		    if (PatternMatch(pat, patdashes, string, stringdashes))
			return 1;
		}
	    }
	case '?':
	    if (*string++ == XK_minus)
		stringdashes--;
	    break;
	case '\0':
	    return (*string == '\0');
	case XK_minus:
	    if (*string++ == XK_minus) {
		patdashes--;
		stringdashes--;
		break;
	    }
	    return 0;
	default:
	    if (c == *string++)
		break;
	    return 0;
	}
    }
}

int
FontFileCountDashes (char *name, int namelen)
{
    int	ndashes = 0;

    while (namelen--)
	if (*name++ == '\055')	/* avoid non ascii systems */
	    ++ndashes;
    return ndashes;
}

char *
FontFileSaveString (char *s)
{
    char    *n;

    n = malloc (strlen (s) + 1);
    if (!n)
	return 0;
    strcpy (n, s);
    return n;
}

FontEntryPtr
FontFileFindNameInScalableDir(FontTablePtr table, FontNamePtr pat, 
			      FontScalablePtr vals)
{
    int         i,
                start,
                stop,
                res,
                private;
    FontNamePtr	name;

    if (!table->entries)
	return NULL;
    if ((i = SetupWildMatch(table, pat, &start, &stop, &private)) >= 0)
	return &table->entries[i];
    for (i = start; i < stop; i++) {
	name = &table->entries[i].name;
	res = PatternMatch(pat->name, private, name->name, name->ndashes);
	if (res > 0)
	{
	    /* Check to see if enhancements requested are available */
	    if (vals)
	    {
		int vs = vals->values_supplied;
		int cap;

		if (table->entries[i].type == FONT_ENTRY_SCALABLE)
		    cap = table->entries[i].u.scalable.renderer->capabilities;
		else if (table->entries[i].type == FONT_ENTRY_ALIAS)
		    cap = ~0;	/* Calling code will have to see if true */
		else
		    cap = 0;
		if ((((vs & PIXELSIZE_MASK) == PIXELSIZE_ARRAY ||
		      (vs & POINTSIZE_MASK) == POINTSIZE_ARRAY) &&
		     !(cap & CAP_MATRIX)) ||
		    ((vs & CHARSUBSET_SPECIFIED) &&
		     !(cap & CAP_CHARSUBSETTING)))
		    continue;
	    }
	    return &table->entries[i];
	}
	if (res < 0)
	    break;
    }
    return (FontEntryPtr)0;
}

FontEntryPtr
FontFileFindNameInDir(FontTablePtr table, FontNamePtr pat)
{
    return FontFileFindNameInScalableDir(table, pat, (FontScalablePtr)0);
}

int
FontFileFindNamesInScalableDir(FontTablePtr table, FontNamePtr pat, int max, 
			       FontNamesPtr names, FontScalablePtr vals,
			       int alias_behavior, int *newmax)
{
    int		    i,
		    start,
		    stop,
		    res,
		    private;
    int		    ret = Successful;
    FontEntryPtr    fname;
    FontNamePtr	    name;

    if (max <= 0)
	return Successful;
    if ((i = SetupWildMatch(table, pat, &start, &stop, &private)) >= 0) {
	if (alias_behavior == NORMAL_ALIAS_BEHAVIOR ||
	    table->entries[i].type != FONT_ENTRY_ALIAS)
	{
	    name = &table->entries[i].name;
	    if (newmax) *newmax = max - 1;
	    return AddFontNamesName(names, name->name, name->length);
	}
	start = i;
	stop = i + 1;
    }
    for (i = start, fname = &table->entries[start]; i < stop; i++, fname++) {
	res = PatternMatch(pat->name, private, fname->name.name, fname->name.ndashes);
	if (res > 0) {
	    if (vals)
	    {
		int vs = vals->values_supplied;
		int cap;

		if (fname->type == FONT_ENTRY_SCALABLE)
		    cap = fname->u.scalable.renderer->capabilities;
		else if (fname->type == FONT_ENTRY_ALIAS)
		    cap = ~0;	/* Calling code will have to see if true */
		else
		    cap = 0;
		if ((((vs & PIXELSIZE_MASK) == PIXELSIZE_ARRAY ||
		     (vs & POINTSIZE_MASK) == POINTSIZE_ARRAY) &&
		    !(cap & CAP_MATRIX)) ||
		    ((vs & CHARSUBSET_SPECIFIED) &&
		    !(cap & CAP_CHARSUBSETTING)))
		    continue;
	    }

	    if ((alias_behavior & IGNORE_SCALABLE_ALIASES) &&
		fname->type == FONT_ENTRY_ALIAS)
	    {
		FontScalableRec	tmpvals;
		if (FontParseXLFDName (fname->name.name, &tmpvals,
				       FONT_XLFD_REPLACE_NONE) &&
		    !(tmpvals.values_supplied & SIZE_SPECIFY_MASK))
		    continue;
	    }

	    ret = AddFontNamesName(names, fname->name.name, fname->name.length);
	    if (ret != Successful)
		goto bail;

	    /* If alias_behavior is LIST_ALIASES_AND_TARGET_NAMES, mark
	       this entry as an alias by negating its length and follow
	       it by the resolved name */
	    if ((alias_behavior & LIST_ALIASES_AND_TARGET_NAMES) &&
		fname->type == FONT_ENTRY_ALIAS)
	    {
		names->length[names->nnames - 1] =
		    -names->length[names->nnames - 1];
		ret = AddFontNamesName(names, fname->u.alias.resolved,
				       strlen(fname->u.alias.resolved));
		if (ret != Successful)
		    goto bail;
	    }

	    if (--max <= 0)
		break;
	} else if (res < 0)
	    break;
    }
  bail: ;
    if (newmax) *newmax = max;
    return ret;
}

int
FontFileFindNamesInDir(FontTablePtr table, FontNamePtr pat, 
		       int max, FontNamesPtr names)
{
    return FontFileFindNamesInScalableDir(table, pat, max, names,
					  (FontScalablePtr)0,
					  NORMAL_ALIAS_BEHAVIOR, (int *)0);
}

Bool
FontFileMatchName(char *name, int length, FontNamePtr pat)
{
    /* Perform a fontfile-type name match on a single name */
    FontTableRec table;
    FontEntryRec entries[1];

    /* Dummy up a table */
    table.used = 1;
    table.size = 1;
    table.sorted = TRUE;
    table.entries = entries;
    entries[0].name.name = name;
    entries[0].name.length = length;
    entries[0].name.ndashes = FontFileCountDashes(name, length);

    return FontFileFindNameInDir(&table, pat) != (FontEntryPtr)0;
}

/*
 * Add a font file to a directory.  This handles bitmap and
 * scalable names both
 */

Bool
FontFileAddFontFile (FontDirectoryPtr dir, char *fontName, char *fileName)
{
    FontEntryRec	    entry;
    FontScalableRec	    vals, zeroVals;
    FontRendererPtr	    renderer;
    FontEntryPtr	    existing;
    FontScalableExtraPtr    extra;
    FontEntryPtr	    bitmap = 0, scalable;
    Bool		    isscale;
    Bool		    scalable_xlfd;

    renderer = FontFileMatchRenderer (fileName);
    if (!renderer)
	return FALSE;
    entry.name.length = strlen (fontName);
    if (entry.name.length > MAXFONTNAMELEN)
	entry.name.length = MAXFONTNAMELEN;
    entry.name.name = fontName;
    CopyISOLatin1Lowered (entry.name.name, fontName, entry.name.length);
    entry.name.ndashes = FontFileCountDashes (entry.name.name, entry.name.length);
    entry.name.name[entry.name.length] = '\0';
    /*
     * Add a bitmap name if the incoming name isn't an XLFD name, or
     * if it isn't a scalable name (i.e. non-zero scalable fields)
     *
     * If name of bitmapped font contains XLFD enhancements, do not add
     * a scalable version of the name... this can lead to confusion and
     * ambiguity between the font name and the field enhancements.
     */
    isscale = entry.name.ndashes == 14 &&
	      FontParseXLFDName(entry.name.name,
				&vals, FONT_XLFD_REPLACE_NONE) &&
	      (vals.values_supplied & PIXELSIZE_MASK) != PIXELSIZE_ARRAY &&
	      (vals.values_supplied & POINTSIZE_MASK) != POINTSIZE_ARRAY &&
	      !(vals.values_supplied & ENHANCEMENT_SPECIFY_MASK);
#define UNSCALED_ATTRIB "unscaled"
    scalable_xlfd = (isscale &&
		(((vals.values_supplied & PIXELSIZE_MASK) == 0) ||
		 ((vals.values_supplied & POINTSIZE_MASK) == 0)));
    /*
     * For scalable fonts without a scalable XFLD, check if the "unscaled"
     * attribute is present.
     */
    if (isscale && !scalable_xlfd &&
	    dir->attributes && dir->attributes[0] == ':') {
	char *ptr1 = dir->attributes + 1;
	char *ptr2;
	int length;
	int uslength = strlen(UNSCALED_ATTRIB);

	do {
	    ptr2 = strchr(ptr1, ':');
	    if (ptr2)
		length = ptr2 - ptr1;
	    else
		length = dir->attributes + strlen(dir->attributes) - ptr1;
	    if (length == uslength && !strncmp(ptr1, UNSCALED_ATTRIB, uslength))
		isscale = FALSE;
	    if (ptr2)
		ptr1 = ptr2 + 1;
	} while (ptr2);
    }
    if (!isscale || (vals.values_supplied & SIZE_SPECIFY_MASK))
    {
      /*
       * If the renderer doesn't support OpenBitmap, FontFileOpenFont
       * will still do the right thing.
       */
	entry.type = FONT_ENTRY_BITMAP;
	entry.u.bitmap.renderer = renderer;
	entry.u.bitmap.pFont = NullFont;
	if (!(entry.u.bitmap.fileName = FontFileSaveString (fileName)))
	    return FALSE;
	if (!(bitmap = FontFileAddEntry (&dir->nonScalable, &entry)))
	{
	    free (entry.u.bitmap.fileName);
	    return FALSE;
	}
    }
    /*
     * Parse out scalable fields from XLFD names - a scalable name
     * just gets inserted, a scaled name has more things to do.
     */
    if (isscale)
    {
	if (vals.values_supplied & SIZE_SPECIFY_MASK)
	{
	    bzero((char *)&zeroVals, sizeof(zeroVals));
	    zeroVals.x = vals.x;
	    zeroVals.y = vals.y;
	    zeroVals.values_supplied = PIXELSIZE_SCALAR | POINTSIZE_SCALAR;
	    FontParseXLFDName (entry.name.name, &zeroVals,
			       FONT_XLFD_REPLACE_VALUE);
	    entry.name.length = strlen (entry.name.name);
	    existing = FontFileFindNameInDir (&dir->scalable, &entry.name);
	    if (existing)
	    {
		if ((vals.values_supplied & POINTSIZE_MASK) ==
			POINTSIZE_SCALAR &&
		    (int)(vals.point_matrix[3] * 10) == GetDefaultPointSize())
		{
		    existing->u.scalable.extra->defaults = vals;

		    free (existing->u.scalable.fileName);
		    if (!(existing->u.scalable.fileName = FontFileSaveString (fileName)))
			return FALSE;
		}
                if(bitmap)
                {
                    FontFileCompleteXLFD(&vals, &vals);
                    FontFileAddScaledInstance (existing, &vals, NullFont,
                                               bitmap->name.name);
                    return TRUE;
                }
	    }
	}
	if (!(entry.u.scalable.fileName = FontFileSaveString (fileName)))
	    return FALSE;
	extra = malloc (sizeof (FontScalableExtraRec));
	if (!extra)
	{
	    free (entry.u.scalable.fileName);
	    return FALSE;
	}
	bzero((char *)&extra->defaults, sizeof(extra->defaults));
	if ((vals.values_supplied & POINTSIZE_MASK) == POINTSIZE_SCALAR &&
	    (int)(vals.point_matrix[3] * 10) == GetDefaultPointSize())
	    extra->defaults = vals;
	else
	{
	    FontResolutionPtr resolution;
	    int num;

	    extra->defaults.point_matrix[0] =
		extra->defaults.point_matrix[3] =
		    (double)GetDefaultPointSize() / 10.0;
	    extra->defaults.point_matrix[1] =
		extra->defaults.point_matrix[2] = 0.0;
	    extra->defaults.values_supplied =
		POINTSIZE_SCALAR | PIXELSIZE_UNDEFINED;
	    extra->defaults.width = -1;
	    if (vals.x <= 0 || vals.y <= 0)
	    {
	        resolution = GetClientResolutions (&num);
	        if (resolution && num > 0)
	        {
	    	    extra->defaults.x = resolution->x_resolution;
	    	    extra->defaults.y = resolution->y_resolution;
	        }
	        else
	        {
		    extra->defaults.x = 75;
		    extra->defaults.y = 75;
	        }
	     }
	     else 
	     {
		extra->defaults.x = vals.x;
		extra->defaults.y = vals.y;
	     }
	     FontFileCompleteXLFD (&extra->defaults, &extra->defaults);
	}
	extra->numScaled = 0;
	extra->sizeScaled = 0;
	extra->scaled = 0;
	extra->private = 0;
	entry.type = FONT_ENTRY_SCALABLE;
	entry.u.scalable.renderer = renderer;
	entry.u.scalable.extra = extra;
	if (!(scalable = FontFileAddEntry (&dir->scalable, &entry)))
	{
	    free (extra);
	    free (entry.u.scalable.fileName);
	    return FALSE;
	}
	if (vals.values_supplied & SIZE_SPECIFY_MASK)
	{
            if(bitmap)
            {
                FontFileCompleteXLFD(&vals, &vals);
                FontFileAddScaledInstance (scalable, &vals, NullFont,
                                           bitmap->name.name);
            }
	}
    }
    return TRUE;
}

Bool
FontFileAddFontAlias (FontDirectoryPtr dir, char *aliasName, char *fontName)
{
    FontEntryRec	entry;

    if (strcmp(aliasName,fontName) == 0) {
        /* Don't allow an alias to point to itself and create a loop */
        return FALSE;
    }
    entry.name.length = strlen (aliasName);
    CopyISOLatin1Lowered (aliasName, aliasName, entry.name.length);
    entry.name.name = aliasName;
    entry.name.ndashes = FontFileCountDashes (entry.name.name, entry.name.length);
    entry.type = FONT_ENTRY_ALIAS;
    if (!(entry.u.alias.resolved = FontFileSaveString (fontName)))
	return FALSE;
    if (!FontFileAddEntry (&dir->nonScalable, &entry))
    {
	free (entry.u.alias.resolved);
	return FALSE;
    }
    return TRUE;
}