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58 lines
2.3 KiB
TypeScript
58 lines
2.3 KiB
TypeScript
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// Loaded from https://deno.land/x/deno_image@v0.0.3/lib/decoders/fast-png/pako/lib/zlib/gzheader.js
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// (C) 1995-2013 Jean-loup Gailly and Mark Adler
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// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin
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//
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// This software is provided 'as-is', without any express or implied
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// warranty. In no event will the authors be held liable for any damages
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// arising from the use of this software.
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//
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// Permission is granted to anyone to use this software for any purpose,
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// including commercial applications, and to alter it and redistribute it
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// freely, subject to the following restrictions:
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//
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// 1. The origin of this software must not be misrepresented; you must not
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// claim that you wrote the original software. If you use this software
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// in a product, an acknowledgment in the product documentation would be
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// appreciated but is not required.
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// 2. Altered source versions must be plainly marked as such, and must not be
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// misrepresented as being the original software.
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// 3. This notice may not be removed or altered from any source distribution.
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export function GZheader() {
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/* true if compressed data believed to be text */
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this.text = 0;
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/* modification time */
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this.time = 0;
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/* extra flags (not used when writing a gzip file) */
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this.xflags = 0;
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/* operating system */
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this.os = 0;
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/* pointer to extra field or Z_NULL if none */
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this.extra = null;
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/* extra field length (valid if extra != Z_NULL) */
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this.extra_len = 0; // Actually, we don't need it in JS,
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// but leave for few code modifications
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//
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// Setup limits is not necessary because in js we should not preallocate memory
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// for inflate use constant limit in 65536 bytes
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//
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/* space at extra (only when reading header) */
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// this.extra_max = 0;
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/* pointer to zero-terminated file name or Z_NULL */
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this.name = '';
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/* space at name (only when reading header) */
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// this.name_max = 0;
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/* pointer to zero-terminated comment or Z_NULL */
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this.comment = '';
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/* space at comment (only when reading header) */
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// this.comm_max = 0;
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/* true if there was or will be a header crc */
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this.hcrc = 0;
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/* true when done reading gzip header (not used when writing a gzip file) */
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this.done = false;
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}
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