/** @file Internal include file for Tiano Decompress Libary. Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.
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 #include #include // // 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