brotli/c/enc/literal_cost.h
Eugene Kliuchnikov da254cffdb
Update (#630)
* merge {dec|enc}/port.h into common/platform.h
 * fix one-shot q=10 1-byte input compression
 * fix some unprefixed definitions
 * make hashers host-endianness-independent
 * extract enc/params.h from enc/quality.h
 * fix API documentation / typos
 * improve `BrotliEncoderMaxCompressedSize`
2017-12-12 14:33:12 +01:00

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C

/* Copyright 2013 Google Inc. All Rights Reserved.
Distributed under MIT license.
See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
*/
/* Literal cost model to allow backward reference replacement to be efficient.
*/
#ifndef BROTLI_ENC_LITERAL_COST_H_
#define BROTLI_ENC_LITERAL_COST_H_
#include "../common/platform.h"
#include <brotli/types.h>
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
/* Estimates how many bits the literals in the interval [pos, pos + len) in the
ring-buffer (data, mask) will take entropy coded and writes these estimates
to the cost[0..len) array. */
BROTLI_INTERNAL void BrotliEstimateBitCostsForLiterals(
size_t pos, size_t len, size_t mask, const uint8_t *data, float *cost);
#if defined(__cplusplus) || defined(c_plusplus)
} /* extern "C" */
#endif
#endif /* BROTLI_ENC_LITERAL_COST_H_ */