2 * Copyright © 2006 Keith Packard
4 * Permission to use, copy, modify, distribute, and sell this software and its
5 * documentation for any purpose is hereby granted without fee, provided that
6 * the above copyright notice appear in all copies and that both that copyright
7 * notice and this permission notice appear in supporting documentation, and
8 * that the name of the copyright holders not be used in advertising or
9 * publicity pertaining to distribution of the software without specific,
10 * written prior permission. The copyright holders make no representations
11 * about the suitability of this software for any purpose. It is provided "as
12 * is" without express or implied warranty.
14 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
15 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
16 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
17 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
18 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
19 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
26 FcAlignSize (intptr_t size)
28 intptr_t rem = size % sizeof (FcAlign);
30 size += sizeof (FcAlign) - rem;
35 * Serialization helper object -- allocate space in the
36 * yet-to-be-created linear array for a serialized font set
40 FcSerializeCreate (void)
42 FcSerialize *serialize;
44 serialize = malloc (sizeof (FcSerialize));
48 serialize->linear = NULL;
49 serialize->cs_freezer = NULL;
50 memset (serialize->buckets, '\0', sizeof (serialize->buckets));
55 FcSerializeDestroy (FcSerialize *serialize)
59 for (bucket = 0; bucket < FC_SERIALIZE_HASH_SIZE; bucket++)
61 FcSerializeBucket *buck, *next;
63 for (buck = serialize->buckets[bucket]; buck; buck = next) {
68 if (serialize->cs_freezer)
69 FcCharSetFreezerDestroy (serialize->cs_freezer);
74 * Allocate space for an object in the serialized array. Keep track
75 * of where the object is placed and only allocate one copy of each object
79 FcSerializeAlloc (FcSerialize *serialize, const void *object, int size)
81 uintptr_t bucket = ((uintptr_t) object) % FC_SERIALIZE_HASH_SIZE;
82 FcSerializeBucket *buck;
84 for (buck = serialize->buckets[bucket]; buck; buck = buck->next)
85 if (buck->object == object)
87 buck = malloc (sizeof (FcSerializeBucket));
90 buck->object = object;
91 buck->offset = serialize->size;
92 buck->next = serialize->buckets[bucket];
93 serialize->buckets[bucket] = buck;
94 serialize->size += FcAlignSize (size);
99 * Reserve space in the serialization array
102 FcSerializeReserve (FcSerialize *serialize, int size)
104 intptr_t offset = serialize->size;
105 serialize->size += FcAlignSize (size);
110 * Given an object, return the offset in the serialized array where
111 * the serialized copy of the object is stored
114 FcSerializeOffset (FcSerialize *serialize, const void *object)
116 uintptr_t bucket = ((uintptr_t) object) % FC_SERIALIZE_HASH_SIZE;
117 FcSerializeBucket *buck;
119 for (buck = serialize->buckets[bucket]; buck; buck = buck->next)
120 if (buck->object == object)
126 * Given a cache and an object, return a pointer to where
127 * the serialized copy of the object is stored
130 FcSerializePtr (FcSerialize *serialize, const void *object)
132 intptr_t offset = FcSerializeOffset (serialize, object);
136 return (void *) ((char *) serialize->linear + offset);
140 FcStrSerializeAlloc (FcSerialize *serialize, const FcChar8 *str)
142 return FcSerializeAlloc (serialize, str, strlen ((const char *) str) + 1);
146 FcStrSerialize (FcSerialize *serialize, const FcChar8 *str)
148 FcChar8 *str_serialize = FcSerializePtr (serialize, str);
151 strcpy ((char *) str_serialize, (const char *) str);
152 return str_serialize;
154 #include "fcaliastail.h"
155 #undef __fcserialize__