diff options
| author | klu2 <klu2@6f19259b-4bc3-4df7-8a09-765794883524> | 2008-04-25 05:42:56 +0000 |
|---|---|---|
| committer | klu2 <klu2@6f19259b-4bc3-4df7-8a09-765794883524> | 2008-04-25 05:42:56 +0000 |
| commit | 8c1ba7f5e5aef9ff8f4627e8af52932fb4f7b805 (patch) | |
| tree | 306d87aba58f2f376fb9c175b1baa816349dba19 | |
| parent | 52ce3fafd078e524672ff3f3371bdcbd46950012 (diff) | |
The library instance BaseUefiTianoCustomDecompressLib in IntelFrameworkModulePkg is for decompressing GUID section. So it could not be used for EfiLdr module. Just implement TianoDecompress in EfiLdr module itself.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5127 6f19259b-4bc3-4df7-8a09-765794883524
| -rw-r--r-- | DuetPkg/EfiLdr/EfiLdr.inf | 10 | ||||
| -rw-r--r-- | DuetPkg/EfiLdr/TianoDecompress.c | 812 | ||||
| -rw-r--r-- | DuetPkg/EfiLdr/TianoDecompress.h | 230 |
3 files changed, 1049 insertions, 3 deletions
diff --git a/DuetPkg/EfiLdr/EfiLdr.inf b/DuetPkg/EfiLdr/EfiLdr.inf index d829ca247..4d980bca7 100644 --- a/DuetPkg/EfiLdr/EfiLdr.inf +++ b/DuetPkg/EfiLdr/EfiLdr.inf @@ -37,8 +37,7 @@ BaseLib
BaseMemoryLib
UefiApplicationEntryPoint
- BaseUefiTianoDecompressLib
-
+
[Sources.common]
Debug.h
PeLoader.h
@@ -49,7 +48,12 @@ Debug.c
PeLoader.c
Support.c
-
+ TianoDecompress.c
+ TianoDecompress.h
+
+[Guids.common]
+ gTianoCustomDecompressGuid
+
[BuildOptions.common]
#MSFT:*_*_IA32_DLINK_FLAGS = /out:"$(BIN_DIR)\SecMain.exe" /base:0x10000000 /pdb:"$(BIN_DIR)\SecMain.pdb" /LIBPATH:"$(VCINSTALLDIR)\Lib" /LIBPATH:"$(VCINSTALLDIR)\PlatformSdk\Lib" /NOLOGO /SUBSYSTEM:CONSOLE /NODEFAULTLIB /IGNORE:4086 /MAP /OPT:REF /DEBUG /MACHINE:I386 /LTCG Kernel32.lib MSVCRTD.lib Gdi32.lib User32.lib Winmm.lib
MSFT:*_*_IA32_CC_FLAGS = /nologo /W4 /WX /Gy /c /D UNICODE /Od /FI$(DEST_DIR_DEBUG)/AutoGen.h /EHs-c- /GF /Gs8192 /Zi /Gm /D _CRT_SECURE_NO_WARNINGS /D _CRT_SECURE_NO_DEPRECATE
diff --git a/DuetPkg/EfiLdr/TianoDecompress.c b/DuetPkg/EfiLdr/TianoDecompress.c new file mode 100644 index 000000000..d020c6a7b --- /dev/null +++ b/DuetPkg/EfiLdr/TianoDecompress.c @@ -0,0 +1,812 @@ +/**@file
+ UEFI and Custom Decompress Library
+ The function of UefiTianoDecompress() is interface for this module,
+ it will do tiano or uefi decompress with different verison parameter.
+ See EFI specification 1.1 Chapter 17 to get LZ77 compress/decompress.
+
+Copyright (c) 2006, 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.
+
+**/
+
+#include <Guid/CustomDecompress.h>
+#include "TianoDecompress.h"
+
+/**
+ 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
+ )
+{
+ Sd->mBitBuf = (UINT32) (Sd->mBitBuf << NumOfBits);
+
+ while (NumOfBits > Sd->mBitCount) {
+
+ Sd->mBitBuf |= (UINT32) (Sd->mSubBitBuf << (NumOfBits = (UINT16) (NumOfBits - Sd->mBitCount)));
+
+ if (Sd->mCompSize > 0) {
+ //
+ // Get 1 byte into SubBitBuf
+ //
+ Sd->mCompSize--;
+ Sd->mSubBitBuf = 0;
+ Sd->mSubBitBuf = Sd->mSrcBase[Sd->mInBuf++];
+ Sd->mBitCount = 8;
+
+ } else {
+ //
+ // No more bits from the source, just pad zero bit.
+ //
+ Sd->mSubBitBuf = 0;
+ Sd->mBitCount = 8;
+
+ }
+ }
+
+ Sd->mBitCount = (UINT16) (Sd->mBitCount - NumOfBits);
+ Sd->mBitBuf |= Sd->mSubBitBuf >> Sd->mBitCount;
+}
+
+/**
+ 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
+ )
+{
+ UINT32 OutBits;
+
+ OutBits = (UINT32) (Sd->mBitBuf >> (BITBUFSIZ - NumOfBits));
+
+ FillBuf (Sd, NumOfBits);
+
+ return OutBits;
+}
+
+/**
+ 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
+ )
+{
+ UINT16 Count[17];
+ UINT16 Weight[17];
+ UINT16 Start[18];
+ UINT16 *Pointer;
+ UINT16 Index3;
+ volatile UINT16 Index;
+ UINT16 Len;
+ UINT16 Char;
+ UINT16 JuBits;
+ UINT16 Avail;
+ UINT16 NextCode;
+ UINT16 Mask;
+ UINT16 WordOfStart;
+ UINT16 WordOfCount;
+
+ for (Index = 1; Index <= 16; Index++) {
+ Count[Index] = 0;
+ }
+
+ for (Index = 0; Index < NumOfChar; Index++) {
+ Count[BitLen[Index]]++;
+ }
+
+ Start[1] = 0;
+
+ for (Index = 1; Index <= 16; Index++) {
+ WordOfStart = Start[Index];
+ WordOfCount = Count[Index];
+ Start[Index + 1] = (UINT16) (WordOfStart + (WordOfCount << (16 - Index)));
+ }
+
+ if (Start[17] != 0) {
+ /*(1U << 16)*/
+ return (UINT16) BAD_TABLE;
+ }
+
+ JuBits = (UINT16) (16 - TableBits);
+
+ for (Index = 1; Index <= TableBits; Index++) {
+ Start[Index] >>= JuBits;
+ Weight[Index] = (UINT16) (1U << (TableBits - Index));
+ }
+
+ while (Index <= 16) {
+ Weight[Index] = (UINT16) (1U << (16 - Index));
+ Index++;
+ }
+
+ Index = (UINT16) (Start[TableBits + 1] >> JuBits);
+
+ if (Index != 0) {
+ Index3 = (UINT16) (1U << TableBits);
+ while (Index != Index3) {
+ Table[Index++] = 0;
+ }
+ }
+
+ Avail = NumOfChar;
+ Mask = (UINT16) (1U << (15 - TableBits));
+
+ for (Char = 0; Char < NumOfChar; Char++) {
+
+ Len = BitLen[Char];
+ if (Len == 0) {
+ continue;
+ }
+
+ NextCode = (UINT16) (Start[Len] + Weight[Len]);
+
+ if (Len <= TableBits) {
+
+ for (Index = Start[Len]; Index < NextCode; Index++) {
+ Table[Index] = Char;
+ }
+
+ } else {
+
+ Index3 = Start[Len];
+ Pointer = &Table[Index3 >> JuBits];
+ Index = (UINT16) (Len - TableBits);
+
+ while (Index != 0) {
+ if (*Pointer == 0) {
+ Sd->mRight[Avail] = Sd->mLeft[Avail] = 0;
+ *Pointer = Avail++;
+ }
+
+ if (Index3 & Mask) {
+ Pointer = &Sd->mRight[*Pointer];
+ } else {
+ Pointer = &Sd->mLeft[*Pointer];
+ }
+
+ Index3 <<= 1;
+ Index--;
+ }
+
+ *Pointer = Char;
+
+ }
+
+ Start[Len] = NextCode;
+ }
+ //
+ // Succeeds
+ //
+ return 0;
+}
+
+/**
+ Decodes a position value.
+
+ @param Sd the global scratch data
+
+ @return The position value decoded.
+**/
+UINT32
+DecodeP (
+ IN SCRATCH_DATA *Sd
+ )
+{
+ UINT16 Val;
+ UINT32 Mask;
+ UINT32 Pos;
+
+ Val = Sd->mPTTable[Sd->mBitBuf >> (BITBUFSIZ - 8)];
+
+ if (Val >= MAXNP) {
+ Mask = 1U << (BITBUFSIZ - 1 - 8);
+
+ do {
+
+ if (Sd->mBitBuf & Mask) {
+ Val = Sd->mRight[Val];
+ } else {
+ Val = Sd->mLeft[Val];
+ }
+
+ Mask >>= 1;
+ } while (Val >= MAXNP);
+ }
+ //
+ // Advance what we have read
+ //
+ FillBuf (Sd, Sd->mPTLen[Val]);
+
+ Pos = Val;
+ if (Val > 1) {
+ Pos = (UINT32) ((1U << (Val - 1)) + GetBits (Sd, (UINT16) (Val - 1)));
+ }
+
+ return Pos;
+}
+
+/**
+ 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
+ )
+{
+ UINT16 Number;
+ UINT16 CharC;
+ volatile UINT16 Index;
+ UINT32 Mask;
+
+ Number = (UINT16) GetBits (Sd, nbit);
+
+ if (Number == 0) {
+ CharC = (UINT16) GetBits (Sd, nbit);
+
+ for (Index = 0; Index < 256; Index++) {
+ Sd->mPTTable[Index] = CharC;
+ }
+
+ for (Index = 0; Index < nn; Index++) {
+ Sd->mPTLen[Index] = 0;
+ }
+
+ return 0;
+ }
+
+ Index = 0;
+
+ while (Index < Number) {
+
+ CharC = (UINT16) (Sd->mBitBuf >> (BITBUFSIZ - 3));
+
+ if (CharC == 7) {
+ Mask = 1U << (BITBUFSIZ - 1 - 3);
+ while (Mask & Sd->mBitBuf) {
+ Mask >>= 1;
+ CharC += 1;
+ }
+ }
+
+ FillBuf (Sd, (UINT16) ((CharC < 7) ? 3 : CharC - 3));
+
+ Sd->mPTLen[Index++] = (UINT8) CharC;
+
+ if (Index == Special) {
+ CharC = (UINT16) GetBits (Sd, 2);
+ while ((INT16) (--CharC) >= 0) {
+ Sd->mPTLen[Index++] = 0;
+ }
+ }
+ }
+
+ while (Index < nn) {
+ Sd->mPTLen[Index++] = 0;
+ }
+
+ return MakeTable (Sd, nn, Sd->mPTLen, 8, Sd->mPTTable);
+}
+
+/**
+ 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
+ )
+{
+ UINT16 Number;
+ UINT16 CharC;
+ volatile UINT16 Index;
+ UINT32 Mask;
+
+ Number = (UINT16) GetBits (Sd, CBIT);
+
+ if (Number == 0) {
+ CharC = (UINT16) GetBits (Sd, CBIT);
+
+ for (Index = 0; Index < NC; Index++) {
+ Sd->mCLen[Index] = 0;
+ }
+
+ for (Index = 0; Index < 4096; Index++) {
+ Sd->mCTable[Index] = CharC;
+ }
+
+ return ;
+ }
+
+ Index = 0;
+ while (Index < Number) {
+
+ CharC = Sd->mPTTable[Sd->mBitBuf >> (BITBUFSIZ - 8)];
+ if (CharC >= NT) {
+ Mask = 1U << (BITBUFSIZ - 1 - 8);
+
+ do {
+
+ if (Mask & Sd->mBitBuf) {
+ CharC = Sd->mRight[CharC];
+ } else {
+ CharC = Sd->mLeft[CharC];
+ }
+
+ Mask >>= 1;
+
+ } while (CharC >= NT);
+ }
+ //
+ // Advance what we have read
+ //
+ FillBuf (Sd, Sd->mPTLen[CharC]);
+
+ if (CharC <= 2) {
+
+ if (CharC == 0) {
+ CharC = 1;
+ } else if (CharC == 1) {
+ CharC = (UINT16) (GetBits (Sd, 4) + 3);
+ } else if (CharC == 2) {
+ CharC = (UINT16) (GetBits (Sd, CBIT) + 20);
+ }
+
+ while ((INT16) (--CharC) >= 0) {
+ Sd->mCLen[Index++] = 0;
+ }
+
+ } else {
+
+ Sd->mCLen[Index++] = (UINT8) (CharC - 2);
+
+ }
+ }
+
+ while (Index < NC) {
+ Sd->mCLen[Index++] = 0;
+ }
+
+ MakeTable (Sd, NC, Sd->mCLen, 12, Sd->mCTable);
+
+ return ;
+}
+
+/**
+ 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
+ )
+{
+ UINT16 Index2;
+ UINT32 Mask;
+
+ if (Sd->mBlockSize == 0) {
+ //
+ // Starting a new block
+ //
+ Sd->mBlockSize = (UINT16) GetBits (Sd, 16);
+ Sd->mBadTableFlag = ReadPTLen (Sd, NT, TBIT, 3);
+ if (Sd->mBadTableFlag != 0) {
+ return 0;
+ }
+
+ ReadCLen (Sd);
+
+ Sd->mBadTableFlag = ReadPTLen (Sd, MAXNP, Sd->mPBit, (UINT16) (-1));
+ if (Sd->mBadTableFlag != 0) {
+ return 0;
+ }
+ }
+
+ Sd->mBlockSize--;
+ Index2 = Sd->mCTable[Sd->mBitBuf >> (BITBUFSIZ - 12)];
+
+ if (Index2 >= NC) {
+ Mask = 1U << (BITBUFSIZ - 1 - 12);
+
+ do {
+ if (Sd->mBitBuf & Mask) {
+ Index2 = Sd->mRight[Index2];
+ } else {
+ Index2 = Sd->mLeft[Index2];
+ }
+
+ Mask >>= 1;
+ } while (Index2 >= NC);
+ }
+ //
+ // Advance what we have read
+ //
+ FillBuf (Sd, Sd->mCLen[Index2]);
+
+ return Index2;
+}
+
+/**
+ Decode the source data ad put the resulting data into the destination buffer.
+
+ @param Sd - The global scratch data
+**/
+VOID
+Decode (
+ SCRATCH_DATA *Sd
+ )
+{
+ UINT16 BytesRemain;
+ UINT32 DataIdx;
+ UINT16 CharC;
+
+ BytesRemain = (UINT16) (-1);
+
+ DataIdx = 0;
+
+ for (;;) {
+ CharC = DecodeC (Sd);
+ if (Sd->mBadTableFlag != 0) {
+ goto Done ;
+ }
+
+ if (CharC < 256) {
+ //
+ // Process an Original character
+ //
+ if (Sd->mOutBuf >= Sd->mOrigSize) {
+ goto Done ;
+ } else {
+ Sd->mDstBase[Sd->mOutBuf++] = (UINT8) CharC;
+ }
+
+ } else {
+ //
+ // Process a Pointer
+ //
+ CharC = (UINT16) (CharC - (UINT8_MAX + 1 - THRESHOLD));
+
+ BytesRemain = CharC;
+
+ DataIdx = Sd->mOutBuf - DecodeP (Sd) - 1;
+
+ BytesRemain--;
+ while ((INT16) (BytesRemain) >= 0) {
+ Sd->mDstBase[Sd->mOutBuf++] = Sd->mDstBase[DataIdx++];
+ if (Sd->mOutBuf >= Sd->mOrigSize) {
+ goto Done ;
+ }
+
+ BytesRemain--;
+ }
+ }
+ }
+
+Done:
+ return ;
+}
+
+/**
+ The internal implementation of *_DECOMPRESS_PROTOCOL.GetInfo().
+
+ @param Source The source buffer containing the compressed data.
+ @param SourceSize The size of source buffer
+ @param DestinationSize The size of destination buffer.
+ @param ScratchSize The size of scratch buffer.
+
+ @retval RETURN_SUCCESS - The size of destination buffer and the size of scratch buffer are successull retrieved.
+ @retval RETURN_INVALID_PARAMETER - The source data is corrupted
+**/
+RETURN_STATUS
+EFIAPI
+UefiDecompressGetInfo (
+ IN CONST VOID *Source,
+ IN UINT32 SourceSize,
+ OUT UINT32 *DestinationSize,
+ OUT UINT32 *ScratchSize
+ )
+{
+ UINT32 CompressedSize;
+
+ ASSERT (Source != NULL);
+ ASSERT (DestinationSize != NULL);
+ ASSERT (ScratchSize != NULL);
+
+ if (SourceSize < 8) {
+ return RETURN_INVALID_PARAMETER;
+ }
+
+ CompressedSize = *(UINT32 *) Source;
+ if (SourceSize < (CompressedSize + 8)) {
+ return RETURN_INVALID_PARAMETER;
+ }
+
+ *ScratchSize = sizeof (SCRATCH_DATA);
+ *DestinationSize = *((UINT32 *) Source + 1);
+
+ return RETURN_SUCCESS;
+}
+
+/**
+ The internal implementation of *_DECOMPRESS_PROTOCOL.Decompress().
+
+ @param Source The source buffer containing the compressed data.
+ @param Destination The destination buffer to store the decompressed data
+ @param Scratch The buffer used internally by the decompress routine. This buffer is needed to store intermediate data.
+ @param Version 1 for UEFI Decompress algoruthm, 2 for Tiano Decompess algorithm
+
+ @retval RETURN_SUCCESS Decompression is successfull
+ @retval RETURN_INVALID_PARAMETER The source data is corrupted
+**/
+RETURN_STATUS
+EFIAPI
+UefiTianoDecompress (
+ IN CONST VOID *Source,
+ IN OUT VOID *Destination,
+ IN OUT VOID *Scratch,
+ IN UINT32 Version
+ )
+{
+ volatile UINT32 Index;
+ UINT32 CompSize;
+ UINT32 OrigSize;
+ SCRATCH_DATA *Sd;
+ CONST UINT8 *Src;
+ UINT8 *Dst;
+
+ ASSERT (Source != NULL);
+ ASSERT (Destination != NULL);
+ ASSERT (Scratch != NULL);
+
+ Src = Source;
+ Dst = Destination;
+
+ Sd = (SCRATCH_DATA *) Scratch;
+
+ CompSize = Src[0] + (Src[1] << 8) + (Src[2] << 16) + (Src[3] << 24);
+ OrigSize = Src[4] + (Src[5] << 8) + (Src[6] << 16) + (Src[7] << 24);
+
+ //
+ // If compressed file size is 0, return
+ //
+ if (OrigSize == 0) {
+ return RETURN_SUCCESS;
+ }
+
+ Src = Src + 8;
+
+ for (Index = 0; Index < sizeof (SCRATCH_DATA); Index++) {
+ ((UINT8 *) Sd)[Index] = 0;
+ }
+ //
+ // The length of the field 'Position Set Code Length Array Size' in Block Header.
+ // For UEFI 2.0 de/compression algorithm(Version 1), mPBit = 4
+ // For Tiano de/compression algorithm(Version 2), mPBit = 5
+ //
+ switch (Version) {
+ case 1 :
+ Sd->mPBit = 4;
+ break;
+ case 2 :
+ Sd->mPBit = 5;
+ break;
+ default:
+ ASSERT (FALSE);
+ }
+ Sd->mSrcBase = (UINT8 *)Src;
+ Sd->mDstBase = Dst;
+ Sd->mCompSize = CompSize;
+ Sd->mOrigSize = OrigSize;
+
+ //
+ // Fill the first BITBUFSIZ bits
+ //
+ FillBuf (Sd, BITBUFSIZ);
+
+ //
+ // Decompress it
+ //
+ Decode (Sd);
+
+ if (Sd->mBadTableFlag != 0) {
+ //
+ // Something wrong with the source
+ //
+ return RETURN_INVALID_PARAMETER;
+ }
+
+ return RETURN_SUCCESS;
+}
+
+/**
+ The internal implementation of *_DECOMPRESS_PROTOCOL.Decompress().
+
+ @param Source - The source buffer containing the compressed data.
+ @param Destination - The destination buffer to store the decompressed data
+ @param Scratch - The buffer used internally by the decompress routine. This buffer is needed to store intermediate data.
+
+ @retval RETURN_SUCCESS - Decompression is successfull
+ @retval RETURN_INVALID_PARAMETER - The source data is corrupted
+**/
+RETURN_STATUS
+EFIAPI
+UefiDecompress (
+ IN CONST VOID *Source,
+ IN OUT VOID *Destination,
+ IN OUT VOID *Scratch
+ )
+{
+ return UefiTianoDecompress (Source, Destination, Scratch, 1);
+}
+
+/**
+ The internal implementation of Tiano decompress GetInfo.
+
+ @param InputSection Buffer containing the input GUIDed section to be processed.
+ @param OutputBufferSize The size of OutputBuffer.
+ @param ScratchBufferSize The size of ScratchBuffer.
+ @param SectionAttribute The attribute of the input guided section.
+
+ @retval RETURN_SUCCESS - The size of destination buffer and the size of scratch buffer are successull retrieved.
+ @retval RETURN_INVALID_PARAMETER - The source data is corrupted
+ The GUID in InputSection does not match this instance guid.
+**/
+RETURN_STATUS
+EFIAPI
+TianoDecompressGetInfo (
+ IN CONST VOID *InputSection,
+ OUT UINT32 *OutputBufferSize,
+ OUT UINT32 *ScratchBufferSize,
+ OUT UINT16 *SectionAttribute
+ )
+
+{
+ ASSERT (SectionAttribute != NULL);
+
+ if (InputSection == NULL) {
+ return RETURN_INVALID_PARAMETER;
+ }
+
+ if (!CompareGuid (
+ &gTianoCustomDecompressGuid,
+ &(((EFI_GUID_DEFINED_SECTION *) InputSection)->SectionDefinitionGuid))) {
+ return RETURN_INVALID_PARAMETER;
+ }
+ //
+ // Get guid attribute of guid section.
+ //
+ *SectionAttribute = ((EFI_GUID_DEFINED_SECTION *) InputSection)->Attributes;
+
+ //
+ // Call Tiano GetInfo to get the required size info.
+ //
+ return UefiDecompressGetInfo (
+ (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION *) InputSection)->DataOffset,
+ (*(UINT32 *) (((EFI_COMMON_SECTION_HEADER *) InputSection)->Size) & 0x00ffffff) - ((EFI_GUID_DEFINED_SECTION *) InputSection)->DataOffset,
+ OutputBufferSize,
+ ScratchBufferSize
+ );
+}
+
+/**
+ The implementation of Tiano Decompress().
+
+ @param InputSection Buffer containing the input GUIDed section to be processed.
+ @param OutputBuffer OutputBuffer to point to the start of the section's contents.
+ if guided data is not prcessed. Otherwise,
+ OutputBuffer to contain the output data, which is allocated by the caller.
+ @param ScratchBuffer A pointer to a caller-allocated buffer for function internal use.
+ @param AuthenticationStatus A pointer to a caller-allocated UINT32 that indicates the
+ authentication status of the output buffer.
+
+ @retval RETURN_SUCCESS Decompression is successfull
+ @retval RETURN_INVALID_PARAMETER The source data is corrupted, or
+ The GUID in InputSection does not match this instance guid.
+
+**/
+RETURN_STATUS
+EFIAPI
+TianoDecompress (
+ IN CONST VOID *InputSection,
+ OUT VOID **OutputBuffer,
+ IN VOID *ScratchBuffer, OPTIONAL
+ OUT UINT32 *AuthenticationStatus
+ )
+{
+ ASSERT (OutputBuffer != NULL);
+
+ if (InputSection == NULL) {
+ return RETURN_INVALID_PARAMETER;
+ }
+
+ if (!CompareGuid (
+ &gTianoCustomDecompressGuid,
+ &(((EFI_GUID_DEFINED_SECTION *) InputSection)->SectionDefinitionGuid))) {
+ return RETURN_INVALID_PARAMETER;
+ }
+
+ //
+ // Set Authentication to Zero.
+ //
+ *AuthenticationStatus = 0;
+
+ //
+ // Call Tiano Decompress to get the raw data
+ //
+ return UefiTianoDecompress (
+ (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION *) InputSection)->DataOffset,
+ *OutputBuffer,
+ ScratchBuffer,
+ 2
+ );
+}
+
+
diff --git a/DuetPkg/EfiLdr/TianoDecompress.h b/DuetPkg/EfiLdr/TianoDecompress.h new file mode 100644 index 000000000..54ae62099 --- /dev/null +++ b/DuetPkg/EfiLdr/TianoDecompress.h @@ -0,0 +1,230 @@ +/** @file
+ Internal include file for Base UEFI Decompress Libary.
+
+ Copyright (c) 2006, 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.
+
+ Module Name: BaseUefiCustomDecompressLibInternals.h
+
+**/
+
+#ifndef __BASE_UEFI_TIANO_CUSTOM_DECOMPRESS_LIB_INTERNALS_H__
+#define __BASE_UEFI_TIANO_CUSTOM_DECOMPRESS_LIB_INTERNALS_H__
+
+#include <PiPei.h>
+
+#include <Library/UefiDecompressLib.h>
+#include <Library/DebugLib.h>
+#include <Library/BaseMemoryLib.h>
+
+//
+// Decompression algorithm begins here
+//
+#define BITBUFSIZ 32
+#define MAXMATCH 256
+#define THRESHOLD 3
+#define CODE_BIT 16
+#define BAD_TABLE - 1
+
+//
+// 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 UEFI 2.0 de/compression algorithm, mPBit = 4
+ // For Tiano de/compression algorithm, mPBit = 5
+ //
+ UINT8 mPBit;
+} SCRATCH_DATA;
+
+/**
+ 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
+UefiTianoDecompress (
+ IN CONST VOID *Source,
+ IN OUT VOID *Destination,
+ IN OUT VOID *Scratch,
+ IN UINT32 Version
+ );
+
+#endif
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