53 lines
1.9 KiB
Haxe
53 lines
1.9 KiB
Haxe
/*
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* Copyright (C)2005-2019 Haxe Foundation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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package haxe.zip;
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class Tools {
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public static function compress(f:Entry, level:Int) {
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if (f.compressed)
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return;
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// this should be optimized with a temp buffer
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// that would discard the first two bytes
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// (in order to prevent 2x mem usage for large files)
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var data = haxe.zip.Compress.run(f.data, level);
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f.compressed = true;
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f.data = data.sub(2, data.length - 6);
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f.dataSize = f.data.length;
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}
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public static function uncompress(f:Entry) {
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if( !f.compressed )
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return;
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var c = new Uncompress(-15);
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var s = haxe.io.Bytes.alloc(f.fileSize);
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var r = c.execute(f.data,0,s,0);
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c.close();
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if( !r.done || r.read != f.data.length || r.write != f.fileSize )
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throw "Invalid compressed data for "+f.fileName;
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f.compressed = false;
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f.dataSize = f.fileSize;
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f.data = s;
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}
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}
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