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91 lines
3.7 KiB
C
91 lines
3.7 KiB
C
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/** @file
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LZMA Decompress Library internal header file declares Lzma decompress interfaces.
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Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef __LZMADECOMPRESSLIB_INTERNAL_H__
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#define __LZMADECOMPRESSLIB_INTERNAL_H__
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#include <PiPei.h>
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#include <Library/BaseLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/DebugLib.h>
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#include <Library/ExtractGuidedSectionLib.h>
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#include <Guid/LzmaDecompress.h>
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/**
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Given a Lzma compressed source buffer, this function retrieves the size of
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the uncompressed buffer and the size of the scratch buffer required
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to decompress the compressed source buffer.
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Retrieves the size of the uncompressed buffer and the temporary scratch buffer
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required to decompress the buffer specified by Source and SourceSize.
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The size of the uncompressed buffer is returned in DestinationSize,
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the size of the scratch buffer is returned in ScratchSize, and RETURN_SUCCESS is returned.
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This function does not have scratch buffer available to perform a thorough
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checking of the validity of the source data. It just retrieves the "Original Size"
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field from the LZMA_HEADER_SIZE beginning bytes of the source data and output it as DestinationSize.
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And ScratchSize is specific to the decompression implementation.
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If SourceSize is less than LZMA_HEADER_SIZE, then ASSERT().
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@param Source The source buffer containing the compressed data.
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@param SourceSize The size, in bytes, of the source buffer.
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@param DestinationSize A pointer to the size, in bytes, of the uncompressed buffer
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that will be generated when the compressed buffer specified
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by Source and SourceSize is decompressed.
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@param ScratchSize A pointer to the size, in bytes, of the scratch buffer that
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is required to decompress the compressed buffer specified
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by Source and SourceSize.
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@retval RETURN_SUCCESS The size of the uncompressed data was returned
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in DestinationSize and the size of the scratch
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buffer was returned in ScratchSize.
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**/
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RETURN_STATUS
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EFIAPI
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LzmaUefiDecompressGetInfo (
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IN CONST VOID *Source,
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IN UINT32 SourceSize,
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OUT UINT32 *DestinationSize,
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OUT UINT32 *ScratchSize
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);
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/**
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Decompresses a Lzma compressed source buffer.
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Extracts decompressed data to its original form.
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If the compressed source data specified by Source is successfully decompressed
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into Destination, then RETURN_SUCCESS is returned. If the compressed source data
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specified by Source is not in a valid compressed data format,
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then RETURN_INVALID_PARAMETER is returned.
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@param Source The source buffer containing the compressed data.
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@param SourceSize The size of source buffer.
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@param Destination The destination buffer to store the decompressed data
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@param Scratch A temporary scratch buffer that is used to perform the decompression.
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This is an optional parameter that may be NULL if the
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required scratch buffer size is 0.
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@retval RETURN_SUCCESS Decompression completed successfully, and
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the uncompressed buffer is returned in Destination.
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@retval RETURN_INVALID_PARAMETER
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The source buffer specified by Source is corrupted
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(not in a valid compressed format).
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**/
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RETURN_STATUS
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EFIAPI
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LzmaUefiDecompress (
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IN CONST VOID *Source,
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IN UINTN SourceSize,
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IN OUT VOID *Destination,
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IN OUT VOID *Scratch
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);
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#endif
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