cluster.h

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/* 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 clustering similar histograms together. */
 
#ifndef BROTLI_ENC_CLUSTER_H_
#define BROTLI_ENC_CLUSTER_H_
 
#include <brotli/types.h>
 
#include "../common/platform.h"
#include "histogram.h"
#include "memory.h"
 
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
 
typedef struct HistogramPair {
  uint32_t idx1;
  uint32_t idx2;
  double cost_combo;
  double cost_diff;
} HistogramPair;
 
#define CODE(X) /* Declaration */;
 
#define FN(X) X ## Literal
#include "cluster_inc.h"  /* NOLINT(build/include) */
#undef FN
 
#define FN(X) X ## Command
#include "cluster_inc.h"  /* NOLINT(build/include) */
#undef FN
 
#define FN(X) X ## Distance
#include "cluster_inc.h"  /* NOLINT(build/include) */
#undef FN
 
#undef CODE
 
#if defined(__cplusplus) || defined(c_plusplus)
}  /* extern "C" */
#endif
 
#endif  /* BROTLI_ENC_CLUSTER_H_ */