version 1.1.1.1, 2012/02/17 15:09:30
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version 1.1.1.2, 2013/10/14 07:51:14
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/* inftrees.h -- header to use inftrees.c |
/* inftrees.h -- header to use inftrees.c |
* Copyright (C) 1995-2005 Mark Adler | * Copyright (C) 1995-2005, 2010 Mark Adler |
* For conditions of distribution and use, see copyright notice in zlib.h |
* For conditions of distribution and use, see copyright notice in zlib.h |
*/ |
*/ |
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Line 35 typedef struct {
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Line 35 typedef struct {
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01000000 - invalid code |
01000000 - invalid code |
*/ |
*/ |
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/* Maximum size of dynamic tree. The maximum found in a long but non- | /* Maximum size of the dynamic table. The maximum number of code structures is |
exhaustive search was 1444 code structures (852 for length/literals | 1444, which is the sum of 852 for literal/length codes and 592 for distance |
and 592 for distances, the latter actually the result of an | codes. These values were found by exhaustive searches using the program |
exhaustive search). The true maximum is not known, but the value | examples/enough.c found in the zlib distribtution. The arguments to that |
below is more than safe. */ | program are the number of symbols, the initial root table size, and the |
#define ENOUGH 2048 | maximum bit length of a code. "enough 286 9 15" for literal/length codes |
#define MAXD 592 | returns returns 852, and "enough 30 6 15" for distance codes returns 592. |
| The initial root table size (9 or 6) is found in the fifth argument of the |
| inflate_table() calls in inflate.c and infback.c. If the root table size is |
| changed, then these maximum sizes would be need to be recalculated and |
| updated. */ |
| #define ENOUGH_LENS 852 |
| #define ENOUGH_DISTS 592 |
| #define ENOUGH (ENOUGH_LENS+ENOUGH_DISTS) |
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/* Type of code to build for inftable() */ | /* Type of code to build for inflate_table() */ |
typedef enum { |
typedef enum { |
CODES, |
CODES, |
LENS, |
LENS, |
DISTS |
DISTS |
} codetype; |
} codetype; |
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extern int inflate_table OF((codetype type, unsigned short FAR *lens, | int ZLIB_INTERNAL inflate_table OF((codetype type, unsigned short FAR *lens, |
unsigned codes, code FAR * FAR *table, |
unsigned codes, code FAR * FAR *table, |
unsigned FAR *bits, unsigned short FAR *work)); |
unsigned FAR *bits, unsigned short FAR *work)); |