110 lines
4.1 KiB
C
110 lines
4.1 KiB
C
/*
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* Copyright (c) 2017-2019 Genome Research Ltd.
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* Author(s): James Bonfield
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* 3. Neither the names Genome Research Ltd and Wellcome Trust Sanger
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* Institute nor the names of its contributors may be used to endorse
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* or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY GENOME RESEARCH LTD AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GENOME RESEARCH
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* LTD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef RANS_STATIC4x16_H
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#define RANS_STATIC4x16_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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unsigned int rans_compress_bound_4x16(unsigned int size, int order);
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unsigned char *rans_compress_to_4x16(unsigned char *in, unsigned int in_size,
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unsigned char *out, unsigned int *out_size,
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int order);
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unsigned char *rans_compress_4x16(unsigned char *in, unsigned int in_size,
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unsigned int *out_size, int order);
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unsigned char *rans_uncompress_to_4x16(unsigned char *in, unsigned int in_size,
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unsigned char *out, unsigned int *out_size);
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unsigned char *rans_uncompress_4x16(unsigned char *in, unsigned int in_size,
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unsigned int *out_size);
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// CPU detection control. Used for testing and benchmarking.
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// These bitfields control what methods are permitted to be used.
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#define RANS_CPU_ENC_SSE4 (1<<0)
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#define RANS_CPU_ENC_AVX2 (2<<0)
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#define RANS_CPU_ENC_AVX512 (4<<0)
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#define RANS_CPU_ENC_NEON (8<<0)
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#define RANS_CPU_DEC_SSE4 (1<<8)
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#define RANS_CPU_DEC_AVX2 (2<<8)
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#define RANS_CPU_DEC_AVX512 (4<<8)
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#define RANS_CPU_DEC_NEON (8<<8)
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void rans_set_cpu(int opts);
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// "Order" byte options. ORed into the order byte.
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// The bottom bits are the order itself, currently
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// supporting order-0 and order-1 but with expansion room
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// up to order-3 (unlikely).
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//--
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// The values below are stored in the file format
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// Pack 2,4,8 or infinite symbols into a byte.
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#define RANS_ORDER_PACK 0x80
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// Run length encoding with runs & lits encoded separately
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#define RANS_ORDER_RLE 0x40
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// Nop; for tiny segments where rANS overhead is too big
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#define RANS_ORDER_CAT 0x20
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// Don't store the original size; used by STRIPE mode
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#define RANS_ORDER_NOSZ 0x10
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// For N-byte integer data; rotate & encode N streams.
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#define RANS_ORDER_STRIPE 0x08
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// 32-way unrolling instead of 4-way
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#define RANS_ORDER_X32 0x04
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//--
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// order values below are not directly part of the file format, but control
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// the behaviour of the encoder.
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// Bit 8-15 of order hold the stripe size (N).
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// Note: N is stored separately after the order byte
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// Used to disable order-0 in the STRIPE sub-methods.
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#define RANS_ORDER_STRIPE_NO0 (1<<16)
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// Used to request automatic selection between 4-way and 32-way
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#define RANS_ORDER_SIMD_AUTO (1<<17)
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#ifdef __cplusplus
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}
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#endif
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#endif /* RANS_STATIC4x16_H */
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