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7d17818cec
specification. Simplify things by removing most of the support for known uncompressed size in most places. There are some miscellaneous changes here and there too. The API of liblzma has got many changes and still some more will be done soon. While most of the code has been updated, some things are not fixed (the command line tool will choke with invalid filter chain, if nothing else). Subblock filter is somewhat broken for now. It will be updated once the encoded format of the Subblock filter has been decided.
45 lines
1.5 KiB
C
45 lines
1.5 KiB
C
///////////////////////////////////////////////////////////////////////////////
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//
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/// \file bswap.h
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/// \brief Byte swapping
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//
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// This code has been put into the public domain.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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//
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///////////////////////////////////////////////////////////////////////////////
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#ifndef LZMA_BSWAP_H
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#define LZMA_BSWAP_H
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// NOTE: We assume that config.h is already #included.
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// byteswap.h is a GNU extension. It contains inline assembly versions
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// for byteswapping. When byteswap.h is not available, we use generic code.
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#ifdef HAVE_BYTESWAP_H
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# include <byteswap.h>
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#else
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# define bswap_16(num) \
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(((num) << 8) | ((num) >> 8))
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# define bswap_32(num) \
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( (((num) << 24) ) \
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| (((num) << 8) & UINT32_C(0x00FF0000)) \
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| (((num) >> 8) & UINT32_C(0x0000FF00)) \
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| (((num) >> 24) ) )
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# define bswap_64(num) \
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( (((num) << 56) ) \
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| (((num) << 40) & UINT64_C(0x00FF000000000000)) \
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| (((num) << 24) & UINT64_C(0x0000FF0000000000)) \
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| (((num) << 8) & UINT64_C(0x000000FF00000000)) \
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| (((num) >> 8) & UINT64_C(0x00000000FF000000)) \
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| (((num) >> 24) & UINT64_C(0x0000000000FF0000)) \
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| (((num) >> 40) & UINT64_C(0x000000000000FF00)) \
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| (((num) >> 56) ) )
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#endif
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#endif
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