/** @file
Internal include file for Tiano Decompress Libary.
Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef __TIANO_DECOMPRESS_H__
#define __TIANO_DECOMPRESS_H__
#include <stdio.h>
#include <assert.h>
#include <Common/UefiBaseTypes.h>
//
// Decompression algorithm begins here
//
#define UTILITY_NAME "TianoCompress"
#define UTILITY_MAJOR_VERSION 0
#define UTILITY_MINOR_VERSION 1
//
// Default output file name
//
#define DEFAULT_OUTPUT_FILE "file.tmp"
#define BITBUFSIZ 32
#define MAXMATCH 256
#define THRESHOLD 3
#define CODE_BIT 16
#define BAD_TABLE - 1
typedef INT32 NODE;
//
// C: Char&Len Set; P: Position Set; T: exTra Set
//
#define NC (0xff + MAXMATCH + 2 - THRESHOLD)
#define CBIT 9
#define MAXPBIT 5
#define TBIT 5
#define MAXNP ((1U << MAXPBIT) - 1)
#define NT (CODE_BIT + 3)
#if NT > MAXNP
#define NPT NT
#else
#define NPT MAXNP
#endif
typedef struct {
UINT8 *mSrcBase; // Starting address of compressed data
UINT8 *mDstBase; // Starting address of decompressed data
UINT32 mOutBuf;
UINT32 mInBuf;
UINT16 mBitCount;
UINT32 mBitBuf;
UINT32 mSubBitBuf;
UINT16 mBlockSize;
UINT32 mCompSize;
UINT32 mOrigSize;
UINT16 mBadTableFlag;
UINT16 mLeft[2 * NC - 1];
UINT16 mRight[2 * NC - 1];
UINT8 mCLen[NC];
UINT8 mPTLen[NPT];
UINT16 mCTable[4096];
UINT16 mPTTable[256];
//
// The length of the field 'Position Set Code Length Array Size' in Block Header.
// For EFI 1.1 de/compression algorithm, mPBit = 4
// For Tiano de/compression algorithm, mPBit = 5
//
UINT8 mPBit;
} SCRATCH_DATA;
//
// Function Prototypes
//
EFI_STATUS
GetFileContents (
IN char *InputFileName,
OUT UINT8 *FileBuffer,
OUT UINT32 *BufferLength
);
STATIC
VOID
PutDword(
IN UINT32 Data
);
STATIC
EFI_STATUS
AllocateMemory (
VOID
);
STATIC
VOID
FreeMemory (
VOID
);
STATIC
VOID
InitSlide (
VOID
);
STATIC
NODE
Child (
IN NODE NodeQ,
IN UINT8 CharC
);
STATIC
VOID
MakeChild (
IN NODE NodeQ,
IN UINT8 CharC,
IN NODE NodeR
);
STATIC
VOID
Split (
IN NODE Old
);
STATIC
VOID
InsertNode (
VOID
);
STATIC
VOID
DeleteNode (
VOID
);
STATIC
VOID
GetNextMatch (
VOID
);
STATIC
EFI_STATUS
Encode (
VOID
);
STATIC
VOID
CountTFreq (
VOID
);
STATIC
VOID
WritePTLen (
IN INT32 Number,
IN INT32 nbit,
IN INT32 Special
);
STATIC
VOID
WriteCLen (
VOID
);
STATIC
VOID
EncodeC (
IN INT32 Value
);
STATIC
VOID
EncodeP (
IN UINT32 Value
);
STATIC
VOID
SendBlock (
VOID
);
STATIC
VOID
Output (
IN UINT32 c,
IN UINT32 p
);
STATIC
VOID
HufEncodeStart (
VOID
);
STATIC
VOID
HufEncodeEnd (
VOID
);
STATIC
VOID
MakeCrcTable (
VOID
);
STATIC
VOID
PutBits (
IN INT32 Number,
IN UINT32 Value
);
STATIC
INT32
FreadCrc (
OUT UINT8 *Pointer,
IN INT32 Number
);
STATIC
VOID
InitPutBits (
VOID
);
STATIC
VOID
CountLen (
IN INT32 Index
);
STATIC
VOID
MakeLen (
IN INT32 Root
);
STATIC
VOID
DownHeap (
IN INT32 Index
);
STATIC
VOID
MakeCode (
IN INT32 Number,
IN UINT8 Len[ ],
OUT UINT16 Code[]
);
STATIC
INT32
MakeTree (
IN INT32 NParm,
IN UINT16 FreqParm[],
OUT UINT8 LenParm[ ],
OUT UINT16 CodeParm[]
);
/**
Read NumOfBit of bits from source into mBitBuf
Shift mBitBuf NumOfBits left. Read in NumOfBits of bits from source.
@param Sd The global scratch data
@param NumOfBits The number of bits to shift and read.
**/
VOID
FillBuf (
IN SCRATCH_DATA *Sd,
IN UINT16 NumOfBits
);
/**
Get NumOfBits of bits out from mBitBuf
Get NumOfBits of bits out from mBitBuf. Fill mBitBuf with subsequent
NumOfBits of bits from source. Returns NumOfBits of bits that are
popped out.
@param Sd The global scratch data.
@param NumOfBits The number of bits to pop and read.
@return The bits that are popped out.
**/
UINT32
GetBits (
IN SCRATCH_DATA *Sd,
IN UINT16 NumOfBits
);
/**
Creates Huffman Code mapping table according to code length array.
Creates Huffman Code mapping table for Extra Set, Char&Len Set
and Position Set according to code length array.
@param Sd The global scratch data
@param NumOfChar Number of symbols in the symbol set
@param BitLen Code length array
@param TableBits The width of the mapping table
@param Table The table
@retval 0 OK.
@retval BAD_TABLE The table is corrupted.
**/
UINT16
MakeTable (
IN SCRATCH_DATA *Sd,
IN UINT16 NumOfChar,
IN UINT8 *BitLen,
IN UINT16 TableBits,
OUT UINT16 *Table
);
/**
Decodes a position value.
Get a position value according to Position Huffman Table.
@param Sd the global scratch data
@return The position value decoded.
**/
UINT32
DecodeP (
IN SCRATCH_DATA *Sd
);
/**
Reads code lengths for the Extra Set or the Position Set.
Read in the Extra Set or Pointion Set Length Arrary, then
generate the Huffman code mapping for them.
@param Sd The global scratch data.
@param nn Number of symbols.
@param nbit Number of bits needed to represent nn.
@param Special The special symbol that needs to be taken care of.
@retval 0 OK.
@retval BAD_TABLE Table is corrupted.
**/
UINT16
ReadPTLen (
IN SCRATCH_DATA *Sd,
IN UINT16 nn,
IN UINT16 nbit,
IN UINT16 Special
);
/**
Reads code lengths for Char&Len Set.
Read in and decode the Char&Len Set Code Length Array, then
generate the Huffman Code mapping table for the Char&Len Set.
@param Sd the global scratch data
**/
VOID
ReadCLen (
SCRATCH_DATA *Sd
);
/**
Decode a character/length value.
Read one value from mBitBuf, Get one code from mBitBuf. If it is at block boundary, generates
Huffman code mapping table for Extra Set, Code&Len Set and
Position Set.
@param Sd The global scratch data.
@return The value decoded.
**/
UINT16
DecodeC (
SCRATCH_DATA *Sd
);
/**
Decode the source data and put the resulting data into the destination buffer.
Decode the source data and put the resulting data into the destination buffer.
@param Sd The global scratch data
**/
VOID
Decode (
SCRATCH_DATA *Sd
);
RETURN_STATUS
EFIAPI
Decompress (
IN VOID *Source,
IN OUT VOID *Destination,
IN OUT VOID *Scratch,
IN UINT32 Version
);
#endif