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22 lines
714 B
22 lines
714 B
11 months ago
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/* crc32_fold.h -- crc32 folding interface
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* Copyright (C) 2021 Nathan Moinvaziri
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* For conditions of distribution and use, see copyright notice in zlib.h
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*/
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#ifndef CRC32_FOLD_H_
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#define CRC32_FOLD_H_
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#define CRC32_FOLD_BUFFER_SIZE (16 * 4)
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/* sizeof(__m128i) * (4 folds) */
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typedef struct crc32_fold_s {
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uint8_t fold[CRC32_FOLD_BUFFER_SIZE];
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uint32_t value;
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} crc32_fold;
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Z_INTERNAL uint32_t crc32_fold_reset_c(crc32_fold *crc);
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Z_INTERNAL void crc32_fold_copy_c(crc32_fold *crc, uint8_t *dst, const uint8_t *src, size_t len);
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Z_INTERNAL void crc32_fold_c(crc32_fold *crc, const uint8_t *src, size_t len, uint32_t init_crc);
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Z_INTERNAL uint32_t crc32_fold_final_c(crc32_fold *crc);
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#endif
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