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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-13 21:12:02 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-13 21:12:02 +0000 |
commit | 77e50caaf2ef81cd91075cf836fed0e75718ffb4 (patch) | |
tree | 53b7b411290b63192fc9e924a3b6b65cdf67e9d0 /debian/vendor-h2o/deps/brotli/dec/bit_reader.c | |
parent | Adding upstream version 1.8.3. (diff) | |
download | dnsdist-77e50caaf2ef81cd91075cf836fed0e75718ffb4.tar.xz dnsdist-77e50caaf2ef81cd91075cf836fed0e75718ffb4.zip |
Adding debian version 1.8.3-2.debian/1.8.3-2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'debian/vendor-h2o/deps/brotli/dec/bit_reader.c')
-rw-r--r-- | debian/vendor-h2o/deps/brotli/dec/bit_reader.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/debian/vendor-h2o/deps/brotli/dec/bit_reader.c b/debian/vendor-h2o/deps/brotli/dec/bit_reader.c new file mode 100644 index 0000000..cde90af --- /dev/null +++ b/debian/vendor-h2o/deps/brotli/dec/bit_reader.c @@ -0,0 +1,48 @@ +/* Copyright 2013 Google Inc. All Rights Reserved. + + Distributed under MIT license. + See file LICENSE for detail or copy at https://opensource.org/licenses/MIT +*/ + +/* Bit reading helpers */ + +#include "./bit_reader.h" + +#include "./port.h" +#include "./types.h" + +#if defined(__cplusplus) || defined(c_plusplus) +extern "C" { +#endif + +void BrotliInitBitReader(BrotliBitReader* const br) { + br->val_ = 0; + br->bit_pos_ = sizeof(br->val_) << 3; +} + +int BrotliWarmupBitReader(BrotliBitReader* const br) { + size_t aligned_read_mask = (sizeof(br->val_) >> 1) - 1; + /* Fixing alignment after unaligned BrotliFillWindow would result accumulator + overflow. If unalignment is caused by BrotliSafeReadBits, then there is + enough space in accumulator to fix aligment. */ + if (!BROTLI_ALIGNED_READ) { + aligned_read_mask = 0; + } + if (BrotliGetAvailableBits(br) == 0) { + if (!BrotliPullByte(br)) { + return 0; + } + } + + while ((((size_t)br->next_in) & aligned_read_mask) != 0) { + if (!BrotliPullByte(br)) { + /* If we consumed all the input, we don't care about the alignment. */ + return 1; + } + } + return 1; +} + +#if defined(__cplusplus) || defined(c_plusplus) +} /* extern "C" */ +#endif |