BaseTools: Copy Brotli algorithm 3rd party source code for tool

[mirror_edk2.git] / BaseTools / Source / C / BrotliCompress / enc / utf8_util.h

/* Copyright 2013 Google Inc. All Rights Reserved.\r
\r
   Distributed under MIT license.\r
   See file LICENSE for detail or copy at https://opensource.org/licenses/MIT\r
*/\r
\r
/* Heuristics for deciding about the UTF8-ness of strings. */\r
\r
#ifndef BROTLI_ENC_UTF8_UTIL_H_\r
#define BROTLI_ENC_UTF8_UTIL_H_\r
\r
#include "../common/types.h"\r
#include "./port.h"\r
\r
#if defined(__cplusplus) || defined(c_plusplus)\r
extern "C" {\r
#endif\r
\r
static const double kMinUTF8Ratio = 0.75;\r
\r
/* Returns 1 if at least min_fraction of the bytes between pos and\r
   pos + length in the (data, mask) ringbuffer is UTF8-encoded, otherwise\r
   returns 0. */\r
BROTLI_INTERNAL BROTLI_BOOL BrotliIsMostlyUTF8(\r
    const uint8_t* data, const size_t pos, const size_t mask,\r
    const size_t length, const double min_fraction);\r
\r
#if defined(__cplusplus) || defined(c_plusplus)\r
}  /* extern "C" */\r
#endif\r
\r
#endif  /* BROTLI_ENC_UTF8_UTIL_H_ */\r