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Create a branch for header work.

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svn path=/branches/header-work/; revision=45691
This commit is contained in:
Timo Kreuzer 2010-02-26 22:57:55 +00:00
parent 14fe274b1c
commit 9ea495ba33
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212
lib/rtl/compress.c Normal file
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/* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS system libraries
* PURPOSE: Compression and decompression functions
* FILE: lib/rtl/compress.c
* PROGRAMER: Eric Kohl
*/
/* INCLUDES *****************************************************************/
#include <rtl.h>
#define NDEBUG
#include <debug.h>
/* MACROS *******************************************************************/
#define COMPRESSION_FORMAT_MASK 0x00FF
#define COMPRESSION_ENGINE_MASK 0xFF00
/* FUNCTIONS ****************************************************************/
static NTSTATUS
RtlpCompressBufferLZNT1(USHORT Engine,
PUCHAR UncompressedBuffer,
ULONG UncompressedBufferSize,
PUCHAR CompressedBuffer,
ULONG CompressedBufferSize,
ULONG UncompressedChunkSize,
PULONG FinalCompressedSize,
PVOID WorkSpace)
{
return(STATUS_NOT_IMPLEMENTED);
}
static NTSTATUS
RtlpWorkSpaceSizeLZNT1(USHORT Engine,
PULONG BufferAndWorkSpaceSize,
PULONG FragmentWorkSpaceSize)
{
if (Engine == COMPRESSION_ENGINE_STANDARD)
{
*BufferAndWorkSpaceSize = 0x8010;
*FragmentWorkSpaceSize = 0x1000;
return(STATUS_SUCCESS);
}
else if (Engine == COMPRESSION_ENGINE_MAXIMUM)
{
*BufferAndWorkSpaceSize = 0x10;
*FragmentWorkSpaceSize = 0x1000;
return(STATUS_SUCCESS);
}
return(STATUS_NOT_SUPPORTED);
}
/*
* @implemented
*/
NTSTATUS NTAPI
RtlCompressBuffer(IN USHORT CompressionFormatAndEngine,
IN PUCHAR UncompressedBuffer,
IN ULONG UncompressedBufferSize,
OUT PUCHAR CompressedBuffer,
IN ULONG CompressedBufferSize,
IN ULONG UncompressedChunkSize,
OUT PULONG FinalCompressedSize,
IN PVOID WorkSpace)
{
USHORT Format = CompressionFormatAndEngine & COMPRESSION_FORMAT_MASK;
USHORT Engine = CompressionFormatAndEngine & COMPRESSION_ENGINE_MASK;
if ((Format == COMPRESSION_FORMAT_NONE) ||
(Format == COMPRESSION_FORMAT_DEFAULT))
return(STATUS_INVALID_PARAMETER);
if (Format == COMPRESSION_FORMAT_LZNT1)
return(RtlpCompressBufferLZNT1(Engine,
UncompressedBuffer,
UncompressedBufferSize,
CompressedBuffer,
CompressedBufferSize,
UncompressedChunkSize,
FinalCompressedSize,
WorkSpace));
return(STATUS_UNSUPPORTED_COMPRESSION);
}
/*
* @unimplemented
*/
NTSTATUS NTAPI
RtlCompressChunks(IN PUCHAR UncompressedBuffer,
IN ULONG UncompressedBufferSize,
OUT PUCHAR CompressedBuffer,
IN ULONG CompressedBufferSize,
IN OUT PCOMPRESSED_DATA_INFO CompressedDataInfo,
IN ULONG CompressedDataInfoLength,
IN PVOID WorkSpace)
{
return(STATUS_NOT_IMPLEMENTED);
}
/*
* @unimplemented
*/
NTSTATUS NTAPI
RtlDecompressBuffer(IN USHORT CompressionFormat,
OUT PUCHAR UncompressedBuffer,
IN ULONG UncompressedBufferSize,
IN PUCHAR CompressedBuffer,
IN ULONG CompressedBufferSize,
OUT PULONG FinalUncompressedSize)
{
return(STATUS_NOT_IMPLEMENTED);
}
/*
* @unimplemented
*/
NTSTATUS NTAPI
RtlDecompressChunks(OUT PUCHAR UncompressedBuffer,
IN ULONG UncompressedBufferSize,
IN PUCHAR CompressedBuffer,
IN ULONG CompressedBufferSize,
IN PUCHAR CompressedTail,
IN ULONG CompressedTailSize,
IN PCOMPRESSED_DATA_INFO CompressedDataInfo)
{
return(STATUS_NOT_IMPLEMENTED);
}
/*
* @unimplemented
*/
NTSTATUS NTAPI
RtlDecompressFragment(IN USHORT CompressionFormat,
OUT PUCHAR UncompressedFragment,
IN ULONG UncompressedFragmentSize,
IN PUCHAR CompressedBuffer,
IN ULONG CompressedBufferSize,
IN ULONG FragmentOffset,
OUT PULONG FinalUncompressedSize,
IN PVOID WorkSpace)
{
return(STATUS_NOT_IMPLEMENTED);
}
/*
* @unimplemented
*/
NTSTATUS NTAPI
RtlDescribeChunk(IN USHORT CompressionFormat,
IN OUT PUCHAR *CompressedBuffer,
IN PUCHAR EndOfCompressedBufferPlus1,
OUT PUCHAR *ChunkBuffer,
OUT PULONG ChunkSize)
{
return(STATUS_NOT_IMPLEMENTED);
}
/*
* @unimplemented
*/
NTSTATUS NTAPI
RtlGetCompressionWorkSpaceSize(IN USHORT CompressionFormatAndEngine,
OUT PULONG CompressBufferAndWorkSpaceSize,
OUT PULONG CompressFragmentWorkSpaceSize)
{
USHORT Format = CompressionFormatAndEngine & COMPRESSION_FORMAT_MASK;
USHORT Engine = CompressionFormatAndEngine & COMPRESSION_ENGINE_MASK;
if ((Format == COMPRESSION_FORMAT_NONE) ||
(Format == COMPRESSION_FORMAT_DEFAULT))
return(STATUS_INVALID_PARAMETER);
if (Format == COMPRESSION_FORMAT_LZNT1)
return(RtlpWorkSpaceSizeLZNT1(Engine,
CompressBufferAndWorkSpaceSize,
CompressFragmentWorkSpaceSize));
return(STATUS_UNSUPPORTED_COMPRESSION);
}
/*
* @unimplemented
*/
NTSTATUS NTAPI
RtlReserveChunk(IN USHORT CompressionFormat,
IN OUT PUCHAR *CompressedBuffer,
IN PUCHAR EndOfCompressedBufferPlus1,
OUT PUCHAR *ChunkBuffer,
IN ULONG ChunkSize)
{
return(STATUS_NOT_IMPLEMENTED);
}
/* EOF */