diff options
Diffstat (limited to 'deps/node/deps/brotli/c/enc/prefix.h')
-rw-r--r-- | deps/node/deps/brotli/c/enc/prefix.h | 53 |
1 files changed, 0 insertions, 53 deletions
diff --git a/deps/node/deps/brotli/c/enc/prefix.h b/deps/node/deps/brotli/c/enc/prefix.h deleted file mode 100644 index fd359a47..00000000 --- a/deps/node/deps/brotli/c/enc/prefix.h +++ /dev/null @@ -1,53 +0,0 @@ -/* Copyright 2013 Google Inc. All Rights Reserved. - - Distributed under MIT license. - See file LICENSE for detail or copy at https://opensource.org/licenses/MIT -*/ - -/* Functions for encoding of integers into prefix codes the amount of extra - bits, and the actual values of the extra bits. */ - -#ifndef BROTLI_ENC_PREFIX_H_ -#define BROTLI_ENC_PREFIX_H_ - -#include "../common/constants.h" -#include "../common/platform.h" -#include <brotli/types.h> -#include "./fast_log.h" - -#if defined(__cplusplus) || defined(c_plusplus) -extern "C" { -#endif - -/* Here distance_code is an intermediate code, i.e. one of the special codes or - the actual distance increased by BROTLI_NUM_DISTANCE_SHORT_CODES - 1. */ -static BROTLI_INLINE void PrefixEncodeCopyDistance(size_t distance_code, - size_t num_direct_codes, - size_t postfix_bits, - uint16_t* code, - uint32_t* extra_bits) { - if (distance_code < BROTLI_NUM_DISTANCE_SHORT_CODES + num_direct_codes) { - *code = (uint16_t)distance_code; - *extra_bits = 0; - return; - } else { - size_t dist = ((size_t)1 << (postfix_bits + 2u)) + - (distance_code - BROTLI_NUM_DISTANCE_SHORT_CODES - num_direct_codes); - size_t bucket = Log2FloorNonZero(dist) - 1; - size_t postfix_mask = (1u << postfix_bits) - 1; - size_t postfix = dist & postfix_mask; - size_t prefix = (dist >> bucket) & 1; - size_t offset = (2 + prefix) << bucket; - size_t nbits = bucket - postfix_bits; - *code = (uint16_t)((nbits << 10) | - (BROTLI_NUM_DISTANCE_SHORT_CODES + num_direct_codes + - ((2 * (nbits - 1) + prefix) << postfix_bits) + postfix)); - *extra_bits = (uint32_t)((dist - offset) >> postfix_bits); - } -} - -#if defined(__cplusplus) || defined(c_plusplus) -} /* extern "C" */ -#endif - -#endif /* BROTLI_ENC_PREFIX_H_ */ |