Zoltan Szabadka
278b89484f
This commit contains a batch of changes that were made to the Brotli compression algorithm in the last month. Most important changes: * Format change: don't push distances representing static dictionary words to the distance cache. * Fix decoder invalid memory access bug caused by building a non-complete Huffman tree. * Add a mode parameter to the encoder interface. * Use different hashers for text and font mode. * Add a heuristics to the hasher for skipping non-compressible data. * Exhaustive search of static dictionary during backward reference search.
41 lines
1.4 KiB
C++
41 lines
1.4 KiB
C++
// Copyright 2013 Google Inc. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// Function to find backward reference copies.
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#ifndef BROTLI_ENC_BACKWARD_REFERENCES_H_
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#define BROTLI_ENC_BACKWARD_REFERENCES_H_
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#include <stdint.h>
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#include <vector>
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#include "./hash.h"
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#include "./command.h"
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namespace brotli {
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void CreateBackwardReferences(size_t num_bytes,
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size_t position,
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const uint8_t* ringbuffer,
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const float* literal_cost,
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size_t ringbuffer_mask,
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const size_t max_backward_limit,
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Hashers* hashers,
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Hashers::Type hash_type,
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std::vector<Command>* commands);
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} // namespace brotli
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#endif // BROTLI_ENC_BACKWARD_REFERENCES_H_
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