/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim:set ts=2 sw=2 sts=2 et cindent: */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
// From the docs in // https://searchfox.org/mozilla-central/source/modules/zlib/src/zlib.h inline int8_t ZLibWindowBits(CompressionFormat format) { switch (format) { case CompressionFormat::Deflate: // The windowBits parameter is the base two logarithm of the window size // (the size of the history buffer). It should be in the range 8..15 for // this version of the library. Larger values of this parameter result // in better compression at the expense of memory usage. return 15; case CompressionFormat::Deflate_raw: // windowBits can also be –8..–15 for raw deflate. In this case, // -windowBits determines the window size. return -15; case CompressionFormat::Gzip: // windowBits can also be greater than 15 for optional gzip encoding. // Add 16 to windowBits to write a simple gzip header and trailer around // the compressed data instead of a zlib wrapper. return 31; default:
MOZ_ASSERT_UNREACHABLE("Unknown compression format"); return 0;
}
}
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