2024-02-12 15:09:10 +00:00
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// SPDX-License-Identifier: 0BSD
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2007-12-08 22:42:33 +00:00
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///////////////////////////////////////////////////////////////////////////////
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//
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/// \file filter_flags_encoder.c
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2019-06-03 17:41:54 +00:00
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/// \brief Encodes a Filter Flags field
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2007-12-08 22:42:33 +00:00
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//
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2009-04-13 08:27:40 +00:00
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// Author: Lasse Collin
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2007-12-08 22:42:33 +00:00
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//
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///////////////////////////////////////////////////////////////////////////////
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2008-08-28 19:53:15 +00:00
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#include "filter_encoder.h"
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2007-12-08 22:42:33 +00:00
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2009-02-02 18:14:03 +00:00
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extern LZMA_API(lzma_ret)
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2008-08-28 19:53:15 +00:00
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lzma_filter_flags_size(uint32_t *size, const lzma_filter *filter)
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2007-12-08 22:42:33 +00:00
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{
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2008-09-10 14:02:00 +00:00
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if (filter->id >= LZMA_FILTER_RESERVED_START)
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return LZMA_PROG_ERROR;
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2008-08-28 19:53:15 +00:00
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return_if_error(lzma_properties_size(size, filter));
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2007-12-08 22:42:33 +00:00
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2008-08-28 19:53:15 +00:00
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*size += lzma_vli_size(filter->id) + lzma_vli_size(*size);
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2007-12-08 22:42:33 +00:00
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return LZMA_OK;
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}
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2009-02-02 18:14:03 +00:00
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extern LZMA_API(lzma_ret)
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2008-08-28 19:53:15 +00:00
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lzma_filter_flags_encode(const lzma_filter *filter,
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uint8_t *out, size_t *out_pos, size_t out_size)
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2007-12-08 22:42:33 +00:00
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{
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2008-06-18 15:02:10 +00:00
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// Filter ID
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2008-08-28 19:53:15 +00:00
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if (filter->id >= LZMA_FILTER_RESERVED_START)
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2008-09-10 14:02:00 +00:00
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return LZMA_PROG_ERROR;
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2008-08-28 19:53:15 +00:00
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return_if_error(lzma_vli_encode(filter->id, NULL,
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2008-06-18 15:02:10 +00:00
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out, out_pos, out_size));
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// Size of Properties
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2008-08-28 19:53:15 +00:00
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uint32_t props_size;
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return_if_error(lzma_properties_size(&props_size, filter));
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return_if_error(lzma_vli_encode(props_size, NULL,
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2008-06-18 15:02:10 +00:00
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out, out_pos, out_size));
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2007-12-08 22:42:33 +00:00
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// Filter Properties
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2008-08-28 19:53:15 +00:00
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if (out_size - *out_pos < props_size)
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return LZMA_PROG_ERROR;
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2007-12-08 22:42:33 +00:00
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2008-08-28 19:53:15 +00:00
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return_if_error(lzma_properties_encode(filter, out + *out_pos));
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2007-12-08 22:42:33 +00:00
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2008-08-28 19:53:15 +00:00
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*out_pos += props_size;
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2007-12-08 22:42:33 +00:00
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2008-08-28 19:53:15 +00:00
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return LZMA_OK;
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2007-12-08 22:42:33 +00:00
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}
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