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- /* Copyright (C) 1993 Aladdin Enterprises. All rights reserved.
-
- This file is part of Ghostscript.
-
- Ghostscript is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY. No author or distributor accepts responsibility
- to anyone for the consequences of using it or for whether it serves any
- particular purpose or works at all, unless he says so in writing. Refer
- to the Ghostscript General Public License for full details.
-
- Everyone is granted permission to copy, modify and redistribute
- Ghostscript, but only under the conditions described in the Ghostscript
- General Public License. A copy of this license is supposed to have been
- given to you along with Ghostscript so you can know your rights and
- responsibilities. It should be in a file named COPYING. Among other
- things, the copyright notice and this notice must be preserved on all
- copies. */
-
- /* gxcdir.h */
- /* Definitions for character cache management */
-
- /* Font/matrix pair cache management */
-
- #ifndef cached_fm_pair_DEFINED
- # define cached_fm_pair_DEFINED
- typedef struct cached_fm_pair_s cached_fm_pair;
- #endif
- typedef struct fm_pair_cache_s {
- uint msize, mmax; /* # of cached font/matrix pairs */
- cached_fm_pair *mdata;
- uint mnext; /* rover for allocating font/matrix pairs */
- } fm_pair_cache;
-
- /*
- * We allocate the character cache in chunks, so as not to tie up memory
- * prematurely if it isn't needed (or something else needs it more).
- * Thus there is a structure for managing an entire cache, and another
- * structure for managing each chunk.
- */
-
- typedef struct char_cache_chunk_s char_cache_chunk;
- struct char_cache_chunk_s {
- char_cache_chunk *next;
- byte *data; /* struct cached_char_head_s * */
- uint size;
- };
-
- #ifndef cached_char_DEFINED
- # define cached_char_DEFINED
- typedef struct cached_char_s cached_char;
- #endif
- typedef struct char_cache_s {
- const gs_memory_procs *mprocs;
- uint bsize, bmax; /* # of bytes for cached chars */
- uint bspace; /* space allocated for chunks */
- uint csize, cmax; /* # of cached chars */
- uint lower; /* min size at which cached chars */
- /* should be stored compressed */
- uint upper; /* max size of a single cached char */
- cached_char **chars; /* chain heads */
- uint chars_mask; /* (a power of 2 -1) */
- char_cache_chunk *chunks; /* current chunk in circular list */
- uint cnext; /* rover for allocating characters */
- /* in current chunk */
- char_cache_chunk initial_chunk; /* dummy initial chunk */
- } char_cache;
-