| 1 | /* |
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| 2 | * $Id: //suprahd/releases/suprahd_163/suprahd_ztvapp640_163/drivers/graphics/ZLIB/maketree.c#1 $ |
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| 3 | * $Revision: #1 $ |
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| 4 | * $DateTime: 2006/02/24 17:51:46 $ |
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| 5 | * $Change: 42566 $ |
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| 6 | * $Author: pryush.sharma $ |
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| 7 | */ |
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| 8 | |
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| 9 | /* maketree.c -- make inffixed.h table for decoding fixed codes |
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| 10 | * Copyright (C) 1998 Mark Adler |
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| 11 | * For conditions of distribution and use, see copyright notice in zlib.h |
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| 12 | */ |
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| 13 | |
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| 14 | /* WARNING: this file should *not* be used by applications. It is |
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| 15 | part of the implementation of the compression library and is |
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| 16 | subject to change. Applications should only use zlib.h. |
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| 17 | */ |
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| 18 | |
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| 19 | /* This program is included in the distribution for completeness. |
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| 20 | You do not need to compile or run this program since inffixed.h |
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| 21 | is already included in the distribution. To use this program |
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| 22 | you need to compile zlib with BUILDFIXED defined and then compile |
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| 23 | and link this program with the zlib library. Then the output of |
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| 24 | this program can be piped to inffixed.h. */ |
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| 25 | |
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| 26 | #include <stdio.h> |
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| 27 | //#include <string.h> |
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| 28 | #include "zutil.h" |
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| 29 | #include "inftrees.h" |
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| 30 | |
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| 31 | /* simplify the use of the inflate_huft type with some defines */ |
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| 32 | #define exop word.what.Exop |
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| 33 | #define bits word.what.Bits |
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| 34 | |
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| 35 | /* generate initialization table for an inflate_huft structure array */ |
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| 36 | void maketree(uInt b, inflate_huft *t) |
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| 37 | { |
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| 38 | int i, e; |
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| 39 | |
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| 40 | i = 0; |
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| 41 | while (1) |
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| 42 | { |
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| 43 | e = t[i].exop; |
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| 44 | if (e && (e & (16+64)) == 0) /* table pointer */ |
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| 45 | { |
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| 46 | fprintf(stderr, "maketree: cannot initialize sub-tables!\n"); |
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| 47 | exit(1); |
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| 48 | } |
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| 49 | if (i % 4 == 0) |
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| 50 | printf("\n "); |
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| 51 | printf(" {{{%u,%u}},%u}", t[i].exop, t[i].bits, t[i].base); |
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| 52 | if (++i == (1<<b)) |
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| 53 | break; |
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| 54 | putchar(','); |
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| 55 | } |
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| 56 | puts(""); |
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| 57 | } |
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| 58 | |
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| 59 | /* create the fixed tables in C initialization syntax */ |
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| 60 | int main(void) |
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| 61 | { |
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| 62 | int r; |
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| 63 | uInt bl, bd; |
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| 64 | inflate_huft *tl, *td; |
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| 65 | z_stream z; |
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| 66 | |
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| 67 | z.zalloc = zcalloc; |
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| 68 | z.opaque = (voidpf)0; |
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| 69 | z.zfree = zcfree; |
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| 70 | r = inflate_trees_fixed(&bl, &bd, &tl, &td, &z); |
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| 71 | if (r) |
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| 72 | { |
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| 73 | fprintf(stderr, "inflate_trees_fixed error %d\n", r); |
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| 74 | return(0); |
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| 75 | } |
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| 76 | puts("/* inffixed.h -- table for decoding fixed codes"); |
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| 77 | puts(" * Generated automatically by the maketree.c program"); |
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| 78 | puts(" */"); |
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| 79 | puts(""); |
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| 80 | puts("/* WARNING: this file should *not* be used by applications. It is"); |
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| 81 | puts(" part of the implementation of the compression library and is"); |
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| 82 | puts(" subject to change. Applications should only use zlib.h."); |
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| 83 | puts(" */"); |
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| 84 | puts(""); |
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| 85 | printf("local uInt fixed_bl = %d;\n", bl); |
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| 86 | printf("local uInt fixed_bd = %d;\n", bd); |
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| 87 | printf("local inflate_huft fixed_tl[] = {"); |
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| 88 | maketree(bl, tl); |
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| 89 | puts(" };"); |
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| 90 | printf("local inflate_huft fixed_td[] = {"); |
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| 91 | maketree(bd, td); |
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| 92 | puts(" };"); |
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| 93 | return(0); |
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| 94 | } |
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