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- /* Copyright (C) 1995, 1996, 1997 Aladdin Enterprises. All rights reserved.
-
- This file is part of Aladdin Ghostscript.
-
- Aladdin Ghostscript is distributed with NO WARRANTY OF ANY KIND. No author
- or distributor accepts any responsibility for the consequences of using it,
- or for whether it serves any particular purpose or works at all, unless he
- or she says so in writing. Refer to the Aladdin Ghostscript Free Public
- License (the "License") for full details.
-
- Every copy of Aladdin Ghostscript must include a copy of the License,
- normally in a plain ASCII text file named PUBLIC. The License grants you
- the right to copy, modify and redistribute Aladdin Ghostscript, but only
- under certain conditions described in the License. Among other things, the
- License requires that the copyright notice and this notice be preserved on
- all copies.
- */
-
- /* szlibx.h */
- /* Definitions for zlib filters */
- /* Requires strimpl.h */
- /* Must be compiled with -I$(ZSRCDIR) */
- #include "zlib.h"
-
- /* Provide zlib-compatible allocation and freeing functions. */
- void *s_zlib_alloc(P3(void *mem, uint items, uint size));
- void s_zlib_free(P2(void *mem, void *address));
-
- typedef struct stream_zlib_state_s {
- stream_state_common;
- /* Parameters - compression and decompression */
- int windowBits;
- bool no_wrapper; /* omit wrapper and checksum */
- /* Parameters - compression only */
- int level; /* effort level */
- int method;
- int memLevel;
- int strategy;
- /* Dynamic state */
- z_stream zstate;
- } stream_zlib_state;
- /* The state descriptor is public only to allow us to split up */
- /* the encoding and decoding filters. */
- /* Note that we allocate all of zlib's private data directly from */
- /* the C heap, to avoid garbage collection issues. */
- extern_st(st_zlib_state);
- #define public_st_zlib_state() /* in szlibc.c */\
- gs_public_st_simple(st_zlib_state, stream_zlib_state,\
- "zlibEncode/Decode state")
- extern const stream_template s_zlibD_template;
- extern const stream_template s_zlibE_template;
-
- /* Shared procedures */
- stream_proc_set_defaults(s_zlib_set_defaults);
-