126fa459cSmrg/* Copyright 2013 Google Inc. All Rights Reserved.
226fa459cSmrg
326fa459cSmrg   Distributed under MIT license.
426fa459cSmrg   See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
526fa459cSmrg*/
626fa459cSmrg
726fa459cSmrg/* Functions for clustering similar histograms together. */
826fa459cSmrg
926fa459cSmrg#ifndef BROTLI_ENC_CLUSTER_H_
1026fa459cSmrg#define BROTLI_ENC_CLUSTER_H_
1126fa459cSmrg
1226fa459cSmrg#include "../common/platform.h"
1326fa459cSmrg#include <brotli/types.h>
1426fa459cSmrg#include "./histogram.h"
1526fa459cSmrg#include "./memory.h"
1626fa459cSmrg
1726fa459cSmrg#if defined(__cplusplus) || defined(c_plusplus)
1826fa459cSmrgextern "C" {
1926fa459cSmrg#endif
2026fa459cSmrg
2126fa459cSmrgtypedef struct HistogramPair {
2226fa459cSmrg  uint32_t idx1;
2326fa459cSmrg  uint32_t idx2;
2426fa459cSmrg  double cost_combo;
2526fa459cSmrg  double cost_diff;
2626fa459cSmrg} HistogramPair;
2726fa459cSmrg
2826fa459cSmrg#define CODE(X) /* Declaration */;
2926fa459cSmrg
3026fa459cSmrg#define FN(X) X ## Literal
3126fa459cSmrg#include "./cluster_inc.h"  /* NOLINT(build/include) */
3226fa459cSmrg#undef FN
3326fa459cSmrg
3426fa459cSmrg#define FN(X) X ## Command
3526fa459cSmrg#include "./cluster_inc.h"  /* NOLINT(build/include) */
3626fa459cSmrg#undef FN
3726fa459cSmrg
3826fa459cSmrg#define FN(X) X ## Distance
3926fa459cSmrg#include "./cluster_inc.h"  /* NOLINT(build/include) */
4026fa459cSmrg#undef FN
4126fa459cSmrg
4226fa459cSmrg#undef CODE
4326fa459cSmrg
4426fa459cSmrg#if defined(__cplusplus) || defined(c_plusplus)
4526fa459cSmrg}  /* extern "C" */
4626fa459cSmrg#endif
4726fa459cSmrg
4826fa459cSmrg#endif  /* BROTLI_ENC_CLUSTER_H_ */
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