1 /* zconf.h -- configuration of the zlib compression library
2 * Copyright (C) 1995-1998 Jean-loup Gailly.
3 * For conditions of distribution and use, see copyright notice in zlib.h
11 /* The memory requirements for deflate are (in bytes):
12 (1 << (windowBits+2)) + (1 << (memLevel+9))
13 that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values)
14 plus a few kilobytes for small objects. For example, if you want to reduce
15 the default memory requirements from 256K to 128K, compile with
16 make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7"
17 Of course this will generally degrade compression (there's no free lunch).
19 The memory requirements for inflate are (in bytes) 1 << windowBits
20 that is, 32K for windowBits=15 (default value) plus a few kilobytes
24 /* Maximum value for memLevel in deflateInit2 */
26 # define MAX_MEM_LEVEL 8
29 /* Maximum value for windowBits in deflateInit2 and inflateInit2.
30 * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files
31 * created by gzip. (Files created by minigzip can still be extracted by
35 # define MAX_WBITS 15 /* 32K LZ77 window */
38 /* default windowBits for decompression. MAX_WBITS is for compression only */
40 # define DEF_WBITS MAX_WBITS
43 /* default memLevel */
44 #if MAX_MEM_LEVEL >= 8
45 # define DEF_MEM_LEVEL 8
47 # define DEF_MEM_LEVEL MAX_MEM_LEVEL
50 /* Type declarations */
52 typedef unsigned char Byte
; /* 8 bits */
53 typedef unsigned int uInt
; /* 16 bits or more */
54 typedef unsigned long uLong
; /* 32 bits or more */
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