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Diffstat (limited to 'web/server/h2o/libh2o/deps/brotli/enc/metablock.h')
-rw-r--r-- | web/server/h2o/libh2o/deps/brotli/enc/metablock.h | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/web/server/h2o/libh2o/deps/brotli/enc/metablock.h b/web/server/h2o/libh2o/deps/brotli/enc/metablock.h deleted file mode 100644 index 00c739b0d..000000000 --- a/web/server/h2o/libh2o/deps/brotli/enc/metablock.h +++ /dev/null @@ -1,80 +0,0 @@ -/* Copyright 2015 Google Inc. All Rights Reserved. - - Distributed under MIT license. - See file LICENSE for detail or copy at https://opensource.org/licenses/MIT -*/ - -// Algorithms for distributing the literals and commands of a metablock between -// block types and contexts. - -#ifndef BROTLI_ENC_METABLOCK_H_ -#define BROTLI_ENC_METABLOCK_H_ - -#include <vector> - -#include "./command.h" -#include "./histogram.h" - -namespace brotli { - -struct BlockSplit { - BlockSplit() : num_types(0) {} - - size_t num_types; - std::vector<uint8_t> types; - std::vector<uint32_t> lengths; -}; - -struct MetaBlockSplit { - BlockSplit literal_split; - BlockSplit command_split; - BlockSplit distance_split; - std::vector<uint32_t> literal_context_map; - std::vector<uint32_t> distance_context_map; - std::vector<HistogramLiteral> literal_histograms; - std::vector<HistogramCommand> command_histograms; - std::vector<HistogramDistance> distance_histograms; -}; - -// Uses the slow shortest-path block splitter and does context clustering. -void BuildMetaBlock(const uint8_t* ringbuffer, - const size_t pos, - const size_t mask, - uint8_t prev_byte, - uint8_t prev_byte2, - const Command* cmds, - size_t num_commands, - ContextType literal_context_mode, - MetaBlockSplit* mb); - -// Uses a fast greedy block splitter that tries to merge current block with the -// last or the second last block and does not do any context modeling. -void BuildMetaBlockGreedy(const uint8_t* ringbuffer, - size_t pos, - size_t mask, - const Command *commands, - size_t n_commands, - MetaBlockSplit* mb); - -// Uses a fast greedy block splitter that tries to merge current block with the -// last or the second last block and uses a static context clustering which -// is the same for all block types. -void BuildMetaBlockGreedyWithContexts(const uint8_t* ringbuffer, - size_t pos, - size_t mask, - uint8_t prev_byte, - uint8_t prev_byte2, - ContextType literal_context_mode, - size_t num_contexts, - const uint32_t* static_context_map, - const Command *commands, - size_t n_commands, - MetaBlockSplit* mb); - -void OptimizeHistograms(size_t num_direct_distance_codes, - size_t distance_postfix_bits, - MetaBlockSplit* mb); - -} // namespace brotli - -#endif // BROTLI_ENC_METABLOCK_H_ |