From be1c7e50e1e8809ea56f2c9d472eccd8ffd73a97 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 04:57:58 +0200 Subject: Adding upstream version 1.44.3. Signed-off-by: Daniel Baumann --- web/server/h2o/libh2o/deps/brotli/dec/bit_reader.c | 48 ++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 web/server/h2o/libh2o/deps/brotli/dec/bit_reader.c (limited to 'web/server/h2o/libh2o/deps/brotli/dec/bit_reader.c') diff --git a/web/server/h2o/libh2o/deps/brotli/dec/bit_reader.c b/web/server/h2o/libh2o/deps/brotli/dec/bit_reader.c new file mode 100644 index 00000000..cde90af5 --- /dev/null +++ b/web/server/h2o/libh2o/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 -- cgit v1.2.3