chromium/third_party/brotli/enc/histogram.c

/* Copyright 2013 Google Inc. All Rights Reserved.

   Distributed under MIT license.
   See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
*/

/* Build per-context histograms of literals, commands and distance codes. */

#include "histogram.h"

#include "../common/context.h"
#include "block_splitter.h"
#include "command.h"

#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif

BlockSplitIterator;

static void InitBlockSplitIterator(BlockSplitIterator* self,
    const BlockSplit* split) { … }

static void BlockSplitIteratorNext(BlockSplitIterator* self) { … }

void BrotliBuildHistogramsWithContext(
    const Command* cmds, const size_t num_commands,
    const BlockSplit* literal_split, const BlockSplit* insert_and_copy_split,
    const BlockSplit* dist_split, const uint8_t* ringbuffer, size_t start_pos,
    size_t mask, uint8_t prev_byte, uint8_t prev_byte2,
    const ContextType* context_modes, HistogramLiteral* literal_histograms,
    HistogramCommand* insert_and_copy_histograms,
    HistogramDistance* copy_dist_histograms) { … }

#if defined(__cplusplus) || defined(c_plusplus)
}  /* extern "C" */
#endif