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opt / alt / tests / alt-php85-pecl-brotli_0.18.3-2.el8 / brotli / c / enc /

?? ..
?? .libs
?? backward_references.c(6.13 KB)
?? backward_references.dep(2.56 KB)
?? backward_references.h(1.18 KB)
?? backward_references.lo(303 B)
?? backward_references_hq.c(35.88 KB)
?? backward_references_hq.dep(2.56 KB)
?? backward_references_hq.h(3.68 KB)
?? backward_references_hq.lo(309 B)
?? backward_references_inc.h(7.99 KB)
?? bit_cost.c(1.39 KB)
?? bit_cost.dep(1.64 KB)
?? bit_cost.h(896 B)
?? bit_cost.lo(281 B)
?? bit_cost_inc.h(4.02 KB)
?? block_encoder_inc.h(1.11 KB)
?? block_splitter.c(7.16 KB)
?? block_splitter.dep(1.84 KB)
?? block_splitter.h(1.59 KB)
?? block_splitter.lo(293 B)
?? block_splitter_inc.h(18.44 KB)
?? brotli_bit_stream.c(49.72 KB)
?? brotli_bit_stream.dep(1.94 KB)
?? brotli_bit_stream.h(3.26 KB)
?? brotli_bit_stream.lo(299 B)
?? cluster.c(1.42 KB)
?? cluster.dep(1.7 KB)
?? cluster.h(997 B)
?? cluster.lo(279 B)
?? cluster_inc.h(11.55 KB)
?? command.c(1 KB)
?? command.dep(1.24 KB)
?? command.h(6.77 KB)
?? command.lo(279 B)
?? compound_dictionary.c(6.5 KB)
?? compound_dictionary.dep(543 B)
?? compound_dictionary.h(2.38 KB)
?? compound_dictionary.lo(303 B)
?? compress_fragment.c(32.1 KB)
?? compress_fragment.dep(2 KB)
?? compress_fragment.h(3.49 KB)
?? compress_fragment.lo(299 B)
?? compress_fragment_two_pass.c(26.18 KB)
?? compress_fragment_two_pass.dep(2.08 KB)
?? compress_fragment_two_pass.h(2.79 KB)
?? compress_fragment_two_pass.lo(317 B)
?? dictionary_hash.c(7.75 KB)
?? dictionary_hash.dep(537 B)
?? dictionary_hash.h(1.5 KB)
?? dictionary_hash.lo(295 B)
?? dictionary_hash_inc.h(143.28 KB)
?? encode.c(76.58 KB)
?? encode.dep(3.59 KB)
?? encode.lo(277 B)
?? encoder_dict.c(22.83 KB)
?? encoder_dict.dep(2.58 KB)
?? encoder_dict.h(4.9 KB)
?? encoder_dict.lo(289 B)
?? entropy_encode.c(14.23 KB)
?? entropy_encode.dep(531 B)
?? entropy_encode.h(3.96 KB)
?? entropy_encode.lo(293 B)
?? entropy_encode_static.h(32.37 KB)
?? fast_log.c(5.9 KB)
?? fast_log.dep(366 B)
?? fast_log.h(1.61 KB)
?? fast_log.lo(281 B)
?? find_match_length.h(2.12 KB)
?? hash.h(23.73 KB)
?? hash_base.h(1.34 KB)
?? hash_composite_inc.h(4.98 KB)
?? hash_forgetful_chain_inc.h(11.05 KB)
?? hash_longest_match64_inc.h(10.41 KB)
?? hash_longest_match64_simd_inc.h(11.56 KB)
?? hash_longest_match_inc.h(10.34 KB)
?? hash_longest_match_quickly_inc.h(9.26 KB)
?? hash_longest_match_simd_inc.h(11.48 KB)
?? hash_rolling_inc.h(7.06 KB)
?? hash_to_binary_tree_inc.h(12.77 KB)
?? histogram.c(3.18 KB)
?? histogram.dep(1.51 KB)
?? histogram.h(1.77 KB)
?? histogram.lo(283 B)
?? histogram_inc.h(1.37 KB)
?? literal_cost.c(5.74 KB)
?? literal_cost.dep(505 B)
?? literal_cost.h(889 B)
?? literal_cost.lo(289 B)
?? matching_tag_mask.h(2.29 KB)
?? memory.c(5.39 KB)
?? memory.dep(360 B)
?? memory.h(4.2 KB)
?? memory.lo(277 B)
?? metablock.c(26.07 KB)
?? metablock.dep(1.9 KB)
?? metablock.h(3.93 KB)
?? metablock.lo(283 B)
?? metablock_inc.h(7.46 KB)
?? params.h(1.14 KB)
?? prefix.h(1.9 KB)
?? quality.h(7.68 KB)
?? ringbuffer.h(5.83 KB)
?? state.h(3.01 KB)
?? static_dict.c(20.39 KB)
?? static_dict.dep(1.14 KB)
?? static_dict.h(1.19 KB)
?? static_dict.lo(287 B)
?? static_dict_lut.c(7.25 KB)
?? static_dict_lut.dep(685 B)
?? static_dict_lut.h(1.55 KB)
?? static_dict_lut.lo(295 B)
?? static_dict_lut_inc.h(457.82 KB)
?? static_init.c(1.74 KB)
?? static_init.dep(451 B)
?? static_init.h(840 B)
?? static_init.lo(287 B)
?? utf8_util.c(2.22 KB)
?? utf8_util.dep(369 B)
?? utf8_util.h(878 B)
?? utf8_util.lo(283 B)
?? write_bits.h(2.77 KB)

Editing: histogram.c

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

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

typedef struct BlockSplitIterator {
  const BlockSplit* split_;  /* Not owned. */
  size_t idx_;
  size_t type_;
  size_t length_;
} BlockSplitIterator;

static void InitBlockSplitIterator(BlockSplitIterator* self,
    const BlockSplit* split) {
  self->split_ = split;
  self->idx_ = 0;
  self->type_ = 0;
  self->length_ = split->lengths ? split->lengths[0] : 0;
}

static void BlockSplitIteratorNext(BlockSplitIterator* self) {
  if (self->length_ == 0) {
    ++self->idx_;
    self->type_ = self->split_->types[self->idx_];
    self->length_ = self->split_->lengths[self->idx_];
  }
  --self->length_;
}

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) {
  size_t pos = start_pos;
  BlockSplitIterator literal_it;
  BlockSplitIterator insert_and_copy_it;
  BlockSplitIterator dist_it;
  size_t i;

InitBlockSplitIterator(&literal_it, literal_split);
  InitBlockSplitIterator(&insert_and_copy_it, insert_and_copy_split);
  InitBlockSplitIterator(&dist_it, dist_split);
  for (i = 0; i < num_commands; ++i) {
    const Command* cmd = &cmds[i];
    size_t j;
    BlockSplitIteratorNext(&insert_and_copy_it);
    HistogramAddCommand(&insert_and_copy_histograms[insert_and_copy_it.type_],
        cmd->cmd_prefix_);
    /* TODO(eustas): unwrap iterator blocks. */
    for (j = cmd->insert_len_; j != 0; --j) {
      size_t context;
      BlockSplitIteratorNext(&literal_it);
      context = literal_it.type_;
      if (context_modes) {
        ContextLut lut = BROTLI_CONTEXT_LUT(context_modes[context]);
        context = (context << BROTLI_LITERAL_CONTEXT_BITS) +
            BROTLI_CONTEXT(prev_byte, prev_byte2, lut);
      }
      HistogramAddLiteral(&literal_histograms[context],
          ringbuffer[pos & mask]);
      prev_byte2 = prev_byte;
      prev_byte = ringbuffer[pos & mask];
      ++pos;
    }
    pos += CommandCopyLen(cmd);
    if (CommandCopyLen(cmd)) {
      prev_byte2 = ringbuffer[(pos - 2) & mask];
      prev_byte = ringbuffer[(pos - 1) & mask];
      if (cmd->cmd_prefix_ >= 128) {
        size_t context;
        BlockSplitIteratorNext(&dist_it);
        context = (dist_it.type_ << BROTLI_DISTANCE_CONTEXT_BITS) +
            CommandDistanceContext(cmd);
        HistogramAddDistance(&copy_dist_histograms[context],
            cmd->dist_prefix_ & 0x3FF);
      }
    }
  }
}

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

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Editing: histogram.c

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