aboutsummaryrefslogtreecommitdiff
path: root/nx-X11/extras/fontconfig/src/fclist.c
diff options
context:
space:
mode:
Diffstat (limited to 'nx-X11/extras/fontconfig/src/fclist.c')
-rw-r--r--nx-X11/extras/fontconfig/src/fclist.c499
1 files changed, 499 insertions, 0 deletions
diff --git a/nx-X11/extras/fontconfig/src/fclist.c b/nx-X11/extras/fontconfig/src/fclist.c
new file mode 100644
index 000000000..ec47ddcab
--- /dev/null
+++ b/nx-X11/extras/fontconfig/src/fclist.c
@@ -0,0 +1,499 @@
+/*
+ * $RCSId: xc/lib/fontconfig/src/fclist.c,v 1.11tsi Exp $
+ *
+ * Copyright © 2000 Keith Packard
+ *
+ * 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, and that the name of Keith Packard not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission. Keith Packard makes no
+ * representations about the suitability of this software for any purpose. It
+ * is provided "as is" without express or implied warranty.
+ *
+ * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <stdlib.h>
+#include "fcint.h"
+
+FcObjectSet *
+FcObjectSetCreate (void)
+{
+ FcObjectSet *os;
+
+ os = (FcObjectSet *) malloc (sizeof (FcObjectSet));
+ if (!os)
+ return 0;
+ FcMemAlloc (FC_MEM_OBJECTSET, sizeof (FcObjectSet));
+ os->nobject = 0;
+ os->sobject = 0;
+ os->objects = 0;
+ return os;
+}
+
+FcBool
+FcObjectSetAdd (FcObjectSet *os, const char *object)
+{
+ int s;
+ const char **objects;
+ int high, low, mid, c;
+
+ if (os->nobject == os->sobject)
+ {
+ s = os->sobject + 4;
+ if (os->objects)
+ objects = (const char **) realloc ((void *) os->objects,
+ s * sizeof (const char *));
+ else
+ objects = (const char **) malloc (s * sizeof (const char *));
+ if (!objects)
+ return FcFalse;
+ if (os->sobject)
+ FcMemFree (FC_MEM_OBJECTPTR, os->sobject * sizeof (const char *));
+ FcMemAlloc (FC_MEM_OBJECTPTR, s * sizeof (const char *));
+ os->objects = objects;
+ os->sobject = s;
+ }
+ high = os->nobject - 1;
+ low = 0;
+ mid = 0;
+ c = 1;
+ object = FcObjectStaticName (object);
+ while (low <= high)
+ {
+ mid = (low + high) >> 1;
+ c = os->objects[mid] - object;
+ if (c == 0)
+ return FcTrue;
+ if (c < 0)
+ low = mid + 1;
+ else
+ high = mid - 1;
+ }
+ if (c < 0)
+ mid++;
+ memmove (os->objects + mid + 1, os->objects + mid,
+ (os->nobject - mid) * sizeof (const char *));
+ os->objects[mid] = object;
+ os->nobject++;
+ return FcTrue;
+}
+
+void
+FcObjectSetDestroy (FcObjectSet *os)
+{
+ if (os->objects)
+ {
+ FcMemFree (FC_MEM_OBJECTPTR, os->sobject * sizeof (const char *));
+ free ((void *) os->objects);
+ }
+ FcMemFree (FC_MEM_OBJECTSET, sizeof (FcObjectSet));
+ free (os);
+}
+
+FcObjectSet *
+FcObjectSetVaBuild (const char *first, va_list va)
+{
+ FcObjectSet *ret;
+
+ FcObjectSetVapBuild (ret, first, va);
+ return ret;
+}
+
+FcObjectSet *
+FcObjectSetBuild (const char *first, ...)
+{
+ va_list va;
+ FcObjectSet *os;
+
+ va_start (va, first);
+ FcObjectSetVapBuild (os, first, va);
+ va_end (va);
+ return os;
+}
+
+/*
+ * Font must have a containing value for every value in the pattern
+ */
+static FcBool
+FcListValueListMatchAny (FcValueList *patOrig, /* pattern */
+ FcValueList *fntOrig) /* font */
+{
+ FcValueList *pat, *fnt;
+
+ for (pat = patOrig; pat; pat = pat->next)
+ {
+ for (fnt = fntOrig; fnt; fnt = fnt->next)
+ {
+ /*
+ * make sure the font 'contains' the pattern.
+ * (OpListing is OpContains except for strings
+ * where it requires an exact match)
+ */
+ if (FcConfigCompareValue (fnt->value,
+ FcOpListing,
+ pat->value))
+ break;
+ }
+ if (!fnt)
+ return FcFalse;
+ }
+ return FcTrue;
+}
+
+static FcBool
+FcListValueListEqual (FcValueList *v1orig,
+ FcValueList *v2orig)
+{
+ FcValueList *v1, *v2;
+
+ for (v1 = v1orig; v1; v1 = v1->next)
+ {
+ for (v2 = v2orig; v2; v2 = v2->next)
+ if (FcValueEqual (v1->value, v2->value))
+ break;
+ if (!v2)
+ return FcFalse;
+ }
+ for (v2 = v2orig; v2; v2 = v2->next)
+ {
+ for (v1 = v1orig; v1; v1 = v1->next)
+ if (FcValueEqual (v1->value, v2->value))
+ break;
+ if (!v1)
+ return FcFalse;
+ }
+ return FcTrue;
+}
+
+static FcBool
+FcListPatternEqual (FcPattern *p1,
+ FcPattern *p2,
+ FcObjectSet *os)
+{
+ int i;
+ FcPatternElt *e1, *e2;
+
+ for (i = 0; i < os->nobject; i++)
+ {
+ e1 = FcPatternFindElt (p1, os->objects[i]);
+ e2 = FcPatternFindElt (p2, os->objects[i]);
+ if (!e1 && !e2)
+ continue;
+ if (!e1 || !e2)
+ return FcFalse;
+ if (!FcListValueListEqual (e1->values, e2->values))
+ return FcFalse;
+ }
+ return FcTrue;
+}
+
+/*
+ * FcTrue iff all objects in "p" match "font"
+ */
+
+FcBool
+FcListPatternMatchAny (const FcPattern *p,
+ const FcPattern *font)
+{
+ int i;
+ FcPatternElt *e;
+
+ for (i = 0; i < p->num; i++)
+ {
+ e = FcPatternFindElt (font, p->elts[i].object);
+ if (!e)
+ return FcFalse;
+ if (!FcListValueListMatchAny (p->elts[i].values, /* pat elts */
+ e->values)) /* font elts */
+ return FcFalse;
+ }
+ return FcTrue;
+}
+
+static FcChar32
+FcListMatrixHash (const FcMatrix *m)
+{
+ int xx = (int) (m->xx * 100),
+ xy = (int) (m->xy * 100),
+ yx = (int) (m->yx * 100),
+ yy = (int) (m->yy * 100);
+
+ return ((FcChar32) xx) ^ ((FcChar32) xy) ^ ((FcChar32) yx) ^ ((FcChar32) yy);
+}
+
+static FcChar32
+FcListValueHash (FcValue v)
+{
+ switch (v.type) {
+ case FcTypeVoid:
+ return 0;
+ case FcTypeInteger:
+ return (FcChar32) v.u.i;
+ case FcTypeDouble:
+ return (FcChar32) (int) v.u.d;
+ case FcTypeString:
+ return FcStrHashIgnoreCase (v.u.s);
+ case FcTypeBool:
+ return (FcChar32) v.u.b;
+ case FcTypeMatrix:
+ return FcListMatrixHash (v.u.m);
+ case FcTypeCharSet:
+ return FcCharSetCount (v.u.c);
+ case FcTypeFTFace:
+ return (long) v.u.f;
+ case FcTypeLangSet:
+ return FcLangSetHash (v.u.l);
+ }
+ return 0;
+}
+
+static FcChar32
+FcListValueListHash (FcValueList *list)
+{
+ FcChar32 h = 0;
+
+ while (list)
+ {
+ h = h ^ FcListValueHash (list->value);
+ list = list->next;
+ }
+ return h;
+}
+
+static FcChar32
+FcListPatternHash (FcPattern *font,
+ FcObjectSet *os)
+{
+ int n;
+ FcPatternElt *e;
+ FcChar32 h = 0;
+
+ for (n = 0; n < os->nobject; n++)
+ {
+ e = FcPatternFindElt (font, os->objects[n]);
+ if (e)
+ h = h ^ FcListValueListHash (e->values);
+ }
+ return h;
+}
+
+typedef struct _FcListBucket {
+ struct _FcListBucket *next;
+ FcChar32 hash;
+ FcPattern *pattern;
+} FcListBucket;
+
+#define FC_LIST_HASH_SIZE 4099
+
+typedef struct _FcListHashTable {
+ int entries;
+ FcListBucket *buckets[FC_LIST_HASH_SIZE];
+} FcListHashTable;
+
+static void
+FcListHashTableInit (FcListHashTable *table)
+{
+ table->entries = 0;
+ memset (table->buckets, '\0', sizeof (table->buckets));
+}
+
+static void
+FcListHashTableCleanup (FcListHashTable *table)
+{
+ int i;
+ FcListBucket *bucket, *next;
+
+ for (i = 0; i < FC_LIST_HASH_SIZE; i++)
+ {
+ for (bucket = table->buckets[i]; bucket; bucket = next)
+ {
+ next = bucket->next;
+ FcPatternDestroy (bucket->pattern);
+ FcMemFree (FC_MEM_LISTBUCK, sizeof (FcListBucket));
+ free (bucket);
+ }
+ table->buckets[i] = 0;
+ }
+ table->entries = 0;
+}
+
+static FcBool
+FcListAppend (FcListHashTable *table,
+ FcPattern *font,
+ FcObjectSet *os)
+{
+ int o;
+ FcPatternElt *e;
+ FcValueList *v;
+ FcChar32 hash;
+ FcListBucket **prev, *bucket;
+
+ hash = FcListPatternHash (font, os);
+ for (prev = &table->buckets[hash % FC_LIST_HASH_SIZE];
+ (bucket = *prev); prev = &(bucket->next))
+ {
+ if (bucket->hash == hash &&
+ FcListPatternEqual (bucket->pattern, font, os))
+ return FcTrue;
+ }
+ bucket = (FcListBucket *) malloc (sizeof (FcListBucket));
+ if (!bucket)
+ goto bail0;
+ FcMemAlloc (FC_MEM_LISTBUCK, sizeof (FcListBucket));
+ bucket->next = 0;
+ bucket->hash = hash;
+ bucket->pattern = FcPatternCreate ();
+ if (!bucket->pattern)
+ goto bail1;
+
+ for (o = 0; o < os->nobject; o++)
+ {
+ e = FcPatternFindElt (font, os->objects[o]);
+ if (e)
+ {
+ for (v = e->values; v; v = v->next)
+ {
+ if (!FcPatternAdd (bucket->pattern,
+ os->objects[o],
+ v->value, FcTrue))
+ goto bail2;
+ }
+ }
+ }
+ *prev = bucket;
+ ++table->entries;
+
+ return FcTrue;
+
+bail2:
+ FcPatternDestroy (bucket->pattern);
+bail1:
+ FcMemFree (FC_MEM_LISTBUCK, sizeof (FcListBucket));
+ free (bucket);
+bail0:
+ return FcFalse;
+}
+
+FcFontSet *
+FcFontSetList (FcConfig *config,
+ FcFontSet **sets,
+ int nsets,
+ FcPattern *p,
+ FcObjectSet *os)
+{
+ FcFontSet *ret;
+ FcFontSet *s;
+ int f;
+ int set;
+ FcListHashTable table;
+ int i;
+ FcListBucket *bucket;
+
+ if (!config)
+ {
+ if (!FcInitBringUptoDate ())
+ goto bail0;
+
+ config = FcConfigGetCurrent ();
+ if (!config)
+ goto bail0;
+ }
+ FcListHashTableInit (&table);
+ /*
+ * Walk all available fonts adding those that
+ * match to the hash table
+ */
+ for (set = 0; set < nsets; set++)
+ {
+ s = sets[set];
+ if (!s)
+ continue;
+ for (f = 0; f < s->nfont; f++)
+ if (FcListPatternMatchAny (p, /* pattern */
+ s->fonts[f])) /* font */
+ if (!FcListAppend (&table, s->fonts[f], os))
+ goto bail1;
+ }
+#if 0
+ {
+ int max = 0;
+ int full = 0;
+ int ents = 0;
+ int len;
+ for (i = 0; i < FC_LIST_HASH_SIZE; i++)
+ {
+ if ((bucket = table.buckets[i]))
+ {
+ len = 0;
+ for (; bucket; bucket = bucket->next)
+ {
+ ents++;
+ len++;
+ }
+ if (len > max)
+ max = len;
+ full++;
+ }
+ }
+ printf ("used: %d max: %d avg: %g\n", full, max,
+ (double) ents / FC_LIST_HASH_SIZE);
+ }
+#endif
+ /*
+ * Walk the hash table and build
+ * a font set
+ */
+ ret = FcFontSetCreate ();
+ if (!ret)
+ goto bail0;
+ for (i = 0; i < FC_LIST_HASH_SIZE; i++)
+ while ((bucket = table.buckets[i]))
+ {
+ if (!FcFontSetAdd (ret, bucket->pattern))
+ goto bail2;
+ table.buckets[i] = bucket->next;
+ FcMemFree (FC_MEM_LISTBUCK, sizeof (FcListBucket));
+ free (bucket);
+ }
+
+ return ret;
+
+bail2:
+ FcFontSetDestroy (ret);
+bail1:
+ FcListHashTableCleanup (&table);
+bail0:
+ return 0;
+}
+
+FcFontSet *
+FcFontList (FcConfig *config,
+ FcPattern *p,
+ FcObjectSet *os)
+{
+ FcFontSet *sets[2];
+ int nsets;
+
+ if (!config)
+ {
+ config = FcConfigGetCurrent ();
+ if (!config)
+ return 0;
+ }
+ nsets = 0;
+ if (config->fonts[FcSetSystem])
+ sets[nsets++] = config->fonts[FcSetSystem];
+ if (config->fonts[FcSetApplication])
+ sets[nsets++] = config->fonts[FcSetApplication];
+ return FcFontSetList (config, sets, nsets, p, os);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-19 17:54:48 +0000