1 | /* Copyright 2013 Google Inc. All Rights Reserved. |
2 | |
3 | Distributed under MIT license. |
4 | See file LICENSE for detail or copy at https://opensource.org/licenses/MIT |
5 | */ |
6 | |
7 | /* Literal cost model to allow backward reference replacement to be efficient. |
8 | */ |
9 | |
10 | #ifndef BROTLI_ENC_LITERAL_COST_H_ |
11 | #define BROTLI_ENC_LITERAL_COST_H_ |
12 | |
13 | #include "../common/platform.h" |
14 | #include <brotli/types.h> |
15 | |
16 | #if defined(__cplusplus) || defined(c_plusplus) |
17 | extern "C" { |
18 | #endif |
19 | |
20 | /* Estimates how many bits the literals in the interval [pos, pos + len) in the |
21 | ring-buffer (data, mask) will take entropy coded and writes these estimates |
22 | to the cost[0..len) array. */ |
23 | BROTLI_INTERNAL void BrotliEstimateBitCostsForLiterals( |
24 | size_t pos, size_t len, size_t mask, const uint8_t* data, float* cost); |
25 | |
26 | #if defined(__cplusplus) || defined(c_plusplus) |
27 | } /* extern "C" */ |
28 | #endif |
29 | |
30 | #endif /* BROTLI_ENC_LITERAL_COST_H_ */ |
31 | |