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maketree.c
Package: helix.src.0812.rar [view]
Upload User: zhongxx05
Upload Date: 2007-06-06
Package Size: 33641k
Code Size: 2k
Category:
Symbian
Development Platform:
C/C++
- /* maketree.c -- make inffixed.h table for decoding fixed codes
- * Copyright (C) 1995-2002 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.
- */
- /* This program is included in the distribution for completeness.
- You do not need to compile or run this program since inffixed.h
- is already included in the distribution. To use this program
- you need to compile zlib with BUILDFIXED defined and then compile
- and link this program with the zlib library. Then the output of
- this program can be piped to inffixed.h. */
- #include <stdio.h>
- #include <stdlib.h>
- #include "zutil.h"
- #include "inftrees.h"
- /* simplify the use of the inflate_huft type with some defines */
- #define exop word.what.Exop
- #define bits word.what.Bits
- /* generate initialization table for an inflate_huft structure array */
- void maketree(uInt b, inflate_huft *t)
- {
- int i, e;
- i = 0;
- while (1)
- {
- e = t[i].exop;
- if (e && (e & (16+64)) == 0) /* table pointer */
- {
- fprintf(stderr, "maketree: cannot initialize sub-tables!n");
- exit(1);
- }
- if (i % 4 == 0)
- printf("n ");
- printf(" {{{%u,%u}},%u}", t[i].exop, t[i].bits, t[i].base);
- if (++i == (1<<b))
- break;
- putchar(',');
- }
- puts("");
- }
- /* create the fixed tables in C initialization syntax */
- void main(void)
- {
- int r;
- uInt bl, bd;
- inflate_huft *tl, *td;
- z_stream z;
- z.zalloc = zcalloc;
- z.opaque = (voidpf)0;
- z.zfree = zcfree;
- r = inflate_trees_fixed(&bl, &bd, &tl, &td, &z);
- if (r)
- {
- fprintf(stderr, "inflate_trees_fixed error %dn", r);
- return;
- }
- puts("/* inffixed.h -- table for decoding fixed codes");
- puts(" * Generated automatically by the maketree.c program");
- puts(" */");
- puts("");
- puts("/* WARNING: this file should *not* be used by applications. It is");
- puts(" part of the implementation of the compression library and is");
- puts(" subject to change. Applications should only use zlib.h.");
- puts(" */");
- puts("");
- printf("local uInt fixed_bl = %d;n", bl);
- printf("local uInt fixed_bd = %d;n", bd);
- printf("local inflate_huft fixed_tl[] = {");
- maketree(bl, tl);
- puts(" };");
- printf("local inflate_huft fixed_td[] = {");
- maketree(bd, td);
- puts(" };");
- }