122 lines
4.1 KiB
C
122 lines
4.1 KiB
C
/*-
|
|
* Copyright (c) 1998-1999 Shunsuke Akiyama <akiyama@jp.FreeBSD.org>.
|
|
* All rights reserved.
|
|
* Copyright (c) 1998-1999 X-TrueType Server Project, All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* Id: fontcache.h,v 1.12 1999/01/09 06:24:30 akiyama Exp $
|
|
*/
|
|
/* $XFree86: xc/lib/font/fontcache/fontcache.h,v 1.7 2003/01/26 03:02:19 dawes Exp $ */
|
|
|
|
#ifndef _FONTCACHE_H_
|
|
#define _FONTCACHE_H_
|
|
|
|
#include "fontmisc.h"
|
|
#include "fontstruct.h"
|
|
#include "fcqueue.h"
|
|
#define _FONTCACHE_SERVER_
|
|
#include <X11/extensions/fontcacheP.h>
|
|
|
|
/* constant declarations */
|
|
|
|
#ifndef FC_DEFAULT_CACHE_SIZE
|
|
#define FC_DEFAULT_CACHE_SIZE 5120 /* in KB */
|
|
#endif
|
|
|
|
#define FC_CACHE_BALANCE 70 /* in percentage */
|
|
#define FC_BALANCE_LOW 10 /* in percentage */
|
|
#define FC_BALANCE_HI 90 /* in percentage */
|
|
#define FC_BALANCE_DIFFS 5 /* in percentage */
|
|
|
|
#define FC_SMALL_BITMAP_SIZE 128
|
|
|
|
#define FC_MEM_HASH_SIZE 256
|
|
#define FC_MEM_HASH_MASK (FC_MEM_HASH_SIZE - 1)
|
|
|
|
#define FC_PURGE_PER_SCAN 2
|
|
|
|
/* data type declarations */
|
|
|
|
struct cache_entry;
|
|
struct fcbitmap;
|
|
|
|
TAILQ_HEAD(fchash_head, cache_entry);
|
|
TAILQ_HEAD(fcmem_head, fcbitmap);
|
|
|
|
struct fcbitmap {
|
|
TAILQ_ENTRY(fcbitmap) b_hash;
|
|
struct cache_entry *b_entry;
|
|
int size;
|
|
int key;
|
|
};
|
|
|
|
struct fc_entry_vfuncs {
|
|
void (*f_private_dispose)(void *f_private);
|
|
};
|
|
|
|
struct cache_entry {
|
|
TAILQ_ENTRY(cache_entry) c_hash; /* Hash chain. */
|
|
TAILQ_ENTRY(cache_entry) c_lru; /* Font cache LRU list chain. */
|
|
struct fchash_head *c_head; /* Pointer to head. */
|
|
int key; /* hash key */
|
|
CharInfoRec charInfo; /* CharInfo record */
|
|
struct fcbitmap *bmp;
|
|
void *f_private; /* Font-specific private data */
|
|
struct fc_entry_vfuncs *vfuncs; /* virtual function table */
|
|
int bitmapsize; /* Bitmap size */
|
|
char bitmap[FC_SMALL_BITMAP_SIZE]; /* Small bitmap data area */
|
|
};
|
|
|
|
struct fchash {
|
|
int size;
|
|
int mask;
|
|
struct fchash_head *head;
|
|
};
|
|
|
|
struct fcmemhash {
|
|
int index;
|
|
struct fcmem_head head[FC_MEM_HASH_SIZE];
|
|
};
|
|
|
|
typedef struct fcbitmap FontCacheBitmap, *FontCacheBitmapPtr;
|
|
typedef struct cache_entry FontCacheEntry, *FontCacheEntryPtr;
|
|
typedef struct fchash_head FontCacheHead, *FontCacheHeadPtr;
|
|
typedef struct fcmem_head FontCacheBitmapHead, *FontCacheBitmapHeadPtr;
|
|
typedef struct fchash FCCB, *FCCBPtr;
|
|
typedef struct fcmemhash FCBCB, *FCBCBPtr;
|
|
|
|
/* Function prototypes */
|
|
|
|
int FontCacheInitialize(void);
|
|
FCCBPtr FontCacheOpenCache(void * /* arg */);
|
|
void FontCacheCloseCache(FCCBPtr /* this */);
|
|
FontCacheEntryPtr FontCacheGetEntry(void);
|
|
int FontCacheSearchEntry(FCCBPtr /* this */, int /* key */,
|
|
FontCacheEntryPtr * /* value */);
|
|
int FontCacheInsertEntry(FCCBPtr /* this */, int /* key */,
|
|
FontCacheEntryPtr /* entry */);
|
|
int FontCacheGetBitmap(FontCacheEntryPtr /* entry */,
|
|
int /* size */);
|
|
|
|
#endif /* _FONTCACHE_H_ */
|