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55 lines
1.2 KiB
C
55 lines
1.2 KiB
C
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/*
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* Copyright (C) 2013 Jan Bobrowski <jb@wizard.ae.krakow.pl>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*/
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#include <stdlib.h>
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#include "ttf2woff.h"
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#include "zopfli/zlib_container.c"
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#include "zopfli/deflate.c"
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#include "zopfli/lz77.c"
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#include "zopfli/blocksplitter.c"
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#include "zopfli/squeeze.c"
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#include "zopfli/hash.c"
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#include "zopfli/cache.c"
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#include "zopfli/tree.c"
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#include "zopfli/util.c"
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#include "zopfli/katajainen.c"
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#define adler32 zlib_adler32
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#include <zlib.h>
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char *copression_by = "zopfli";
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int zlib_compress(struct buf *out, struct buf *inp)
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{
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ZopfliOptions opt = {0};
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u8 *b=0;
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size_t sz=0;
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opt.numiterations = 15;
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ZopfliZlibCompress(&opt, inp->ptr, inp->len, &b, &sz);
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if(REALLY_SMALLER(sz, inp->len)) {
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/* Trust, but verify */
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uLong tmpl = inp->len;
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Bytef *tmpb = my_alloc(inp->len);
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int v = uncompress(tmpb, &tmpl, b, sz);
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if(v!=Z_OK || tmpl!=inp->len)
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errx(3,"Zopfli error");
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my_free(tmpb);
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out->ptr = b;
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out->len = sz;
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return 1;
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} else {
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free(b);
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return 0;
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}
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}
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