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 /* Functions for clustering similar histograms together. */ 8 9 #ifndef BROTLI_ENC_CLUSTER_H_ 10 #define BROTLI_ENC_CLUSTER_H_ 11 12 #include "../common/platform.h" 13 #include <brotli/types.h> 14 #include "histogram.h" 15 #include "memory.h" 16 17 #if defined(__cplusplus) || defined(c_plusplus) 18 extern "C" { 19 #endif 20 21 typedef struct HistogramPair { 22 uint32_t idx1; 23 uint32_t idx2; 24 double cost_combo; 25 double cost_diff; 26 } HistogramPair; 27 28 #define CODE(X) /* Declaration */; 29 30 #define FN(X) X ## Literal 31 #include "cluster_inc.h" /* NOLINT(build/include) */ 32 #undef FN 33 34 #define FN(X) X ## Command 35 #include "cluster_inc.h" /* NOLINT(build/include) */ 36 #undef FN 37 38 #define FN(X) X ## Distance 39 #include "cluster_inc.h" /* NOLINT(build/include) */ 40 #undef FN 41 42 #undef CODE 43 44 #if defined(__cplusplus) || defined(c_plusplus) 45 } /* extern "C" */ 46 #endif 47 48 #endif /* BROTLI_ENC_CLUSTER_H_ */ 49