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Diffstat (limited to 'zlib/contrib/infback9/inftree9.h')
-rw-r--r-- | zlib/contrib/infback9/inftree9.h | 61 |
1 files changed, 0 insertions, 61 deletions
diff --git a/zlib/contrib/infback9/inftree9.h b/zlib/contrib/infback9/inftree9.h deleted file mode 100644 index 5ab21f0..0000000 --- a/zlib/contrib/infback9/inftree9.h +++ /dev/null @@ -1,61 +0,0 @@ -/* inftree9.h -- header to use inftree9.c - * Copyright (C) 1995-2008 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* WARNING: this file should *not* be used by applications. It is - part of the implementation of the compression library and is - subject to change. Applications should only use zlib.h. - */ - -/* Structure for decoding tables. Each entry provides either the - information needed to do the operation requested by the code that - indexed that table entry, or it provides a pointer to another - table that indexes more bits of the code. op indicates whether - the entry is a pointer to another table, a literal, a length or - distance, an end-of-block, or an invalid code. For a table - pointer, the low four bits of op is the number of index bits of - that table. For a length or distance, the low four bits of op - is the number of extra bits to get after the code. bits is - the number of bits in this code or part of the code to drop off - of the bit buffer. val is the actual byte to output in the case - of a literal, the base length or distance, or the offset from - the current table to the next table. Each entry is four bytes. */ -typedef struct { - unsigned char op; /* operation, extra bits, table bits */ - unsigned char bits; /* bits in this part of the code */ - unsigned short val; /* offset in table or code value */ -} code; - -/* op values as set by inflate_table(): - 00000000 - literal - 0000tttt - table link, tttt != 0 is the number of table index bits - 100eeeee - length or distance, eeee is the number of extra bits - 01100000 - end of block - 01000000 - invalid code - */ - -/* Maximum size of the dynamic table. The maximum number of code structures is - 1446, which is the sum of 852 for literal/length codes and 594 for distance - codes. These values were found by exhaustive searches using the program - examples/enough.c found in the zlib distribtution. The arguments to that - program are the number of symbols, the initial root table size, and the - maximum bit length of a code. "enough 286 9 15" for literal/length codes - returns returns 852, and "enough 32 6 15" for distance codes returns 594. - The initial root table size (9 or 6) is found in the fifth argument of the - inflate_table() calls in infback9.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 594 -#define ENOUGH (ENOUGH_LENS+ENOUGH_DISTS) - -/* Type of code to build for inflate_table9() */ -typedef enum { - CODES, - LENS, - DISTS -} codetype; - -extern int inflate_table9 OF((codetype type, unsigned short FAR *lens, - unsigned codes, code FAR * FAR *table, - unsigned FAR *bits, unsigned short FAR *work)); |