mirror of https://github.com/acidanthera/audk.git
438 lines
7.2 KiB
C
438 lines
7.2 KiB
C
/** @file
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Internal include file for Tiano Decompress Library.
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Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef __TIANO_DECOMPRESS_H__
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#define __TIANO_DECOMPRESS_H__
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#include <stdio.h>
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#include <assert.h>
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#include <Common/UefiBaseTypes.h>
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//
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// Decompression algorithm begins here
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//
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#define UTILITY_NAME "TianoCompress"
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#define UTILITY_MAJOR_VERSION 0
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#define UTILITY_MINOR_VERSION 1
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//
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// Default output file name
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//
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#define DEFAULT_OUTPUT_FILE "file.tmp"
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#define BITBUFSIZ 32
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#define MAXMATCH 256
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#define THRESHOLD 3
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#define CODE_BIT 16
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#define BAD_TABLE - 1
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typedef INT32 NODE;
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//
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// C: Char&Len Set; P: Position Set; T: exTra Set
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//
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#define NC (0xff + MAXMATCH + 2 - THRESHOLD)
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#define CBIT 9
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#define MAXPBIT 5
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#define TBIT 5
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#define MAXNP ((1U << MAXPBIT) - 1)
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#define NT (CODE_BIT + 3)
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#if NT > MAXNP
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#define NPT NT
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#else
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#define NPT MAXNP
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#endif
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typedef struct {
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UINT8 *mSrcBase; // Starting address of compressed data
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UINT8 *mDstBase; // Starting address of decompressed data
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UINT32 mOutBuf;
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UINT32 mInBuf;
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UINT16 mBitCount;
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UINT32 mBitBuf;
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UINT32 mSubBitBuf;
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UINT16 mBlockSize;
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UINT32 mCompSize;
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UINT32 mOrigSize;
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UINT16 mBadTableFlag;
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UINT16 mLeft[2 * NC - 1];
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UINT16 mRight[2 * NC - 1];
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UINT8 mCLen[NC];
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UINT8 mPTLen[NPT];
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UINT16 mCTable[4096];
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UINT16 mPTTable[256];
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//
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// The length of the field 'Position Set Code Length Array Size' in Block Header.
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// For EFI 1.1 de/compression algorithm, mPBit = 4
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// For Tiano de/compression algorithm, mPBit = 5
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//
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UINT8 mPBit;
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} SCRATCH_DATA;
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//
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// Function Prototypes
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//
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EFI_STATUS
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GetFileContents (
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IN char *InputFileName,
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OUT UINT8 *FileBuffer,
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OUT UINT32 *BufferLength
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);
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STATIC
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VOID
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PutDword(
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IN UINT32 Data
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);
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STATIC
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EFI_STATUS
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AllocateMemory (
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VOID
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);
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STATIC
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VOID
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FreeMemory (
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VOID
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);
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STATIC
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VOID
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InitSlide (
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VOID
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);
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STATIC
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NODE
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Child (
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IN NODE NodeQ,
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IN UINT8 CharC
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);
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STATIC
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VOID
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MakeChild (
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IN NODE NodeQ,
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IN UINT8 CharC,
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IN NODE NodeR
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);
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STATIC
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VOID
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Split (
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IN NODE Old
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);
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STATIC
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VOID
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InsertNode (
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VOID
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);
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STATIC
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VOID
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DeleteNode (
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VOID
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);
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STATIC
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VOID
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GetNextMatch (
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VOID
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);
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STATIC
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EFI_STATUS
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Encode (
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VOID
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);
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STATIC
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VOID
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CountTFreq (
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VOID
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);
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STATIC
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VOID
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WritePTLen (
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IN INT32 Number,
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IN INT32 nbit,
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IN INT32 Special
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);
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STATIC
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VOID
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WriteCLen (
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VOID
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);
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STATIC
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VOID
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EncodeC (
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IN INT32 Value
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);
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STATIC
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VOID
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EncodeP (
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IN UINT32 Value
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);
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STATIC
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VOID
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SendBlock (
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VOID
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);
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STATIC
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VOID
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Output (
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IN UINT32 c,
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IN UINT32 p
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);
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STATIC
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VOID
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HufEncodeStart (
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VOID
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);
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STATIC
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VOID
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HufEncodeEnd (
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VOID
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);
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STATIC
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VOID
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MakeCrcTable (
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VOID
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);
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STATIC
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VOID
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PutBits (
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IN INT32 Number,
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IN UINT32 Value
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);
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STATIC
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INT32
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FreadCrc (
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OUT UINT8 *Pointer,
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IN INT32 Number
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);
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STATIC
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VOID
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InitPutBits (
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VOID
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);
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STATIC
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VOID
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CountLen (
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IN INT32 Index
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);
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STATIC
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VOID
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MakeLen (
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IN INT32 Root
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);
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STATIC
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VOID
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DownHeap (
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IN INT32 Index
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);
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STATIC
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VOID
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MakeCode (
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IN INT32 Number,
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IN UINT8 Len[ ],
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OUT UINT16 Code[]
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);
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STATIC
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INT32
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MakeTree (
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IN INT32 NParm,
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IN UINT16 FreqParm[],
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OUT UINT8 LenParm[ ],
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OUT UINT16 CodeParm[]
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);
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/**
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Read NumOfBit of bits from source into mBitBuf
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Shift mBitBuf NumOfBits left. Read in NumOfBits of bits from source.
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@param Sd The global scratch data
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@param NumOfBits The number of bits to shift and read.
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**/
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VOID
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FillBuf (
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IN SCRATCH_DATA *Sd,
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IN UINT16 NumOfBits
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);
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/**
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Get NumOfBits of bits out from mBitBuf
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Get NumOfBits of bits out from mBitBuf. Fill mBitBuf with subsequent
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NumOfBits of bits from source. Returns NumOfBits of bits that are
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popped out.
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@param Sd The global scratch data.
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@param NumOfBits The number of bits to pop and read.
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@return The bits that are popped out.
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**/
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UINT32
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GetBits (
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IN SCRATCH_DATA *Sd,
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IN UINT16 NumOfBits
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);
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/**
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Creates Huffman Code mapping table according to code length array.
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Creates Huffman Code mapping table for Extra Set, Char&Len Set
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and Position Set according to code length array.
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@param Sd The global scratch data
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@param NumOfChar Number of symbols in the symbol set
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@param BitLen Code length array
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@param TableBits The width of the mapping table
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@param Table The table
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@retval 0 OK.
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@retval BAD_TABLE The table is corrupted.
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**/
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UINT16
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MakeTable (
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IN SCRATCH_DATA *Sd,
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IN UINT16 NumOfChar,
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IN UINT8 *BitLen,
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IN UINT16 TableBits,
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OUT UINT16 *Table
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);
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/**
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Decodes a position value.
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Get a position value according to Position Huffman Table.
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@param Sd the global scratch data
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@return The position value decoded.
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**/
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UINT32
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DecodeP (
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IN SCRATCH_DATA *Sd
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);
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/**
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Reads code lengths for the Extra Set or the Position Set.
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Read in the Extra Set or Position Set Length Array, then
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generate the Huffman code mapping for them.
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@param Sd The global scratch data.
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@param nn Number of symbols.
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@param nbit Number of bits needed to represent nn.
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@param Special The special symbol that needs to be taken care of.
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@retval 0 OK.
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@retval BAD_TABLE Table is corrupted.
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**/
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UINT16
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ReadPTLen (
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IN SCRATCH_DATA *Sd,
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IN UINT16 nn,
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IN UINT16 nbit,
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IN UINT16 Special
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);
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/**
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Reads code lengths for Char&Len Set.
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Read in and decode the Char&Len Set Code Length Array, then
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generate the Huffman Code mapping table for the Char&Len Set.
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@param Sd the global scratch data
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**/
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VOID
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ReadCLen (
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SCRATCH_DATA *Sd
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);
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/**
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Decode a character/length value.
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Read one value from mBitBuf, Get one code from mBitBuf. If it is at block boundary, generates
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Huffman code mapping table for Extra Set, Code&Len Set and
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Position Set.
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@param Sd The global scratch data.
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@return The value decoded.
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**/
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UINT16
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DecodeC (
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SCRATCH_DATA *Sd
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);
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/**
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Decode the source data and put the resulting data into the destination buffer.
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Decode the source data and put the resulting data into the destination buffer.
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@param Sd The global scratch data
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**/
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VOID
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Decode (
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SCRATCH_DATA *Sd
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);
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RETURN_STATUS
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EFIAPI
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TDecompress (
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IN VOID *Source,
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IN OUT VOID *Destination,
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IN OUT VOID *Scratch,
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IN UINT32 Version
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);
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#endif
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