61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
/* Copyright 2013 Google Inc. All Rights Reserved.
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Distributed under MIT license.
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See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
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*/
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/* Models the histograms of literals, commands and distance codes. */
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#ifndef BROTLI_ENC_HISTOGRAM_H_
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#define BROTLI_ENC_HISTOGRAM_H_
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#include <string.h> /* memset */
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#include "../common/constants.h"
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#include "../common/platform.h"
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#include <brotli/types.h>
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#include "./block_splitter.h"
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#include "./command.h"
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#include "./context.h"
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#if defined(__cplusplus) || defined(c_plusplus)
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extern "C" {
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#endif
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#define FN(X) X ## Literal
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#define DATA_SIZE BROTLI_NUM_LITERAL_SYMBOLS
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#define DataType uint8_t
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#include "./histogram_inc.h" /* NOLINT(build/include) */
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#undef DataType
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#undef DATA_SIZE
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#undef FN
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#define FN(X) X ## Command
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#define DataType uint16_t
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#define DATA_SIZE BROTLI_NUM_COMMAND_SYMBOLS
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#include "./histogram_inc.h" /* NOLINT(build/include) */
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#undef DATA_SIZE
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#undef FN
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#define FN(X) X ## Distance
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#define DATA_SIZE BROTLI_NUM_DISTANCE_SYMBOLS
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#include "./histogram_inc.h" /* NOLINT(build/include) */
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#undef DataType
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#undef DATA_SIZE
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#undef FN
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BROTLI_INTERNAL void BrotliBuildHistogramsWithContext(
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const Command* cmds, const size_t num_commands,
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const BlockSplit* literal_split, const BlockSplit* insert_and_copy_split,
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const BlockSplit* dist_split, const uint8_t* ringbuffer, size_t pos,
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size_t mask, uint8_t prev_byte, uint8_t prev_byte2,
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const ContextType* context_modes, HistogramLiteral* literal_histograms,
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HistogramCommand* insert_and_copy_histograms,
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HistogramDistance* copy_dist_histograms);
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#if defined(__cplusplus) || defined(c_plusplus)
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} /* extern "C" */
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#endif
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#endif /* BROTLI_ENC_HISTOGRAM_H_ */
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