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Add LzmaArchCustomDecompressLib library instance, which supports for X86 (IA32/X64) optimized decompression. It can provide the improved compression for IA32 and X64 architecture code.

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Signed-off-by: lgao4
Reviewed-by: jljusten

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13111 6f19259b-4bc3-4df7-8a09-765794883524
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lgao4
2012-03-19 07:13:29 +00:00
parent 16d2c32c4d
commit 5aab2d5094
7 changed files with 442 additions and 3 deletions
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60
IntelFrameworkModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/Bra.h Normal file
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/* Bra.h -- Branch converters for executables
2008-10-04 : Igor Pavlov : Public domain */
#ifndef __BRA_H
#define __BRA_H
#include "Types.h"
/*
These functions convert relative addresses to absolute addresses
in CALL instructions to increase the compression ratio.
In:
data - data buffer
size - size of data
ip - current virtual Instruction Pinter (IP) value
state - state variable for x86 converter
encoding - 0 (for decoding), 1 (for encoding)
Out:
state - state variable for x86 converter
Returns:
The number of processed bytes. If you call these functions with multiple calls,
you must start next call with first byte after block of processed bytes.
Type Endian Alignment LookAhead
x86 little 1 4
ARMT little 2 2
ARM little 4 0
PPC big 4 0
SPARC big 4 0
IA64 little 16 0
size must be >= Alignment + LookAhead, if it's not last block.
If (size < Alignment + LookAhead), converter returns 0.
Example:
UInt32 ip = 0;
for ()
{
; size must be >= Alignment + LookAhead, if it's not last block
SizeT processed = Convert(data, size, ip, 1);
data += processed;
size -= processed;
ip += processed;
}
*/
#define x86_Convert_Init(state) { state = 0; }
SizeT x86_Convert(Byte *data, SizeT size, UInt32 ip, UInt32 *state, int encoding);
SizeT ARM_Convert(Byte *data, SizeT size, UInt32 ip, int encoding);
SizeT ARMT_Convert(Byte *data, SizeT size, UInt32 ip, int encoding);
SizeT PPC_Convert(Byte *data, SizeT size, UInt32 ip, int encoding);
SizeT SPARC_Convert(Byte *data, SizeT size, UInt32 ip, int encoding);
SizeT IA64_Convert(Byte *data, SizeT size, UInt32 ip, int encoding);
#endif