X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=DuetPkg%2FEfiLdr%2FTianoDecompress.c;h=695f5162fcbf58a96d76d02a407cf5d9e36c99de;hp=d020c6a7b77ef7bfd3892009c9d09029e7d80bc3;hb=76c09700edc67686b29662e81a3ca7d947594ce5;hpb=8c1ba7f5e5aef9ff8f4627e8af52932fb4f7b805
diff --git a/DuetPkg/EfiLdr/TianoDecompress.c b/DuetPkg/EfiLdr/TianoDecompress.c
index d020c6a7b7..695f5162fc 100644
--- a/DuetPkg/EfiLdr/TianoDecompress.c
+++ b/DuetPkg/EfiLdr/TianoDecompress.c
@@ -1,11 +1,7 @@
-/**@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
+/*++
+
+Copyright (c) 2004 - 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
@@ -13,28 +9,95 @@ 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:
-#include
-#include "TianoDecompress.h"
+ Decompress.c
-/**
- Shift mBitBuf NumOfBits left. Read in NumOfBits of bits from source.
+Abstract:
+
+ Decompressor. Algorithm Ported from OPSD code (Decomp.asm)
- @param Sd The global scratch data
- @param NumOfBits The number of bits to shift and read.
-**/
+--*/
+#include
+//
+// 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 EFI 1.1 de/compression algorithm, mPBit = 4
+ // For Tiano de/compression algorithm, mPBit = 5
+ //
+ UINT8 mPBit;
+} SCRATCH_DATA;
+
VOID
FillBuf (
IN SCRATCH_DATA *Sd,
IN UINT16 NumOfBits
)
+/*++
+
+Routine Description:
+
+ Shift mBitBuf NumOfBits left. Read in NumOfBits of bits from source.
+
+Arguments:
+
+ Sd - The global scratch data
+ NumOfBits - The number of bits to shift and read.
+
+Returns: (VOID)
+
+--*/
{
- Sd->mBitBuf = (UINT32) (Sd->mBitBuf << NumOfBits);
+ Sd->mBitBuf = (UINT32) LShiftU64 (((UINT64)Sd->mBitBuf), NumOfBits);
while (NumOfBits > Sd->mBitCount) {
-
- Sd->mBitBuf |= (UINT32) (Sd->mSubBitBuf << (NumOfBits = (UINT16) (NumOfBits - Sd->mBitCount)));
+ NumOfBits = (UINT16) (NumOfBits - Sd->mBitCount);
+ Sd->mBitBuf |= (UINT32) LShiftU64 (((UINT64)Sd->mSubBitBuf), NumOfBits);
if (Sd->mCompSize > 0) {
//
@@ -59,24 +122,29 @@ FillBuf (
Sd->mBitBuf |= Sd->mSubBitBuf >> Sd->mBitCount;
}
-/**
- Get NumOfBits of bits out from mBitBuf
+UINT32
+GetBits (
+ IN SCRATCH_DATA *Sd,
+ IN UINT16 NumOfBits
+ )
+/*++
+
+Routine Description:
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.
+Arguments:
- @return The bits that are popped out.
+ Sd - The global scratch data.
+ NumOfBits - The number of bits to pop and read.
-**/
-UINT32
-GetBits (
- IN SCRATCH_DATA *Sd,
- IN UINT16 NumOfBits
- )
+Returns:
+
+ The bits that are popped out.
+
+--*/
{
UINT32 OutBits;
@@ -87,22 +155,6 @@ GetBits (
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,
@@ -111,6 +163,26 @@ MakeTable (
IN UINT16 TableBits,
OUT UINT16 *Table
)
+/*++
+
+Routine Description:
+
+ Creates Huffman Code mapping table according to code length array.
+
+Arguments:
+
+ Sd - The global scratch data
+ NumOfChar - Number of symbols in the symbol set
+ BitLen - Code length array
+ TableBits - The width of the mapping table
+ Table - The table
+
+Returns:
+
+ 0 - OK.
+ BAD_TABLE - The table is corrupted.
+
+--*/
{
UINT16 Count[17];
UINT16 Weight[17];
@@ -129,7 +201,7 @@ MakeTable (
for (Index = 1; Index <= 16; Index++) {
Count[Index] = 0;
- }
+ }
for (Index = 0; Index < NumOfChar; Index++) {
Count[BitLen[Index]]++;
@@ -221,17 +293,25 @@ MakeTable (
return 0;
}
-/**
- Decodes a position value.
-
- @param Sd the global scratch data
-
- @return The position value decoded.
-**/
UINT32
DecodeP (
IN SCRATCH_DATA *Sd
)
+/*++
+
+Routine Description:
+
+ Decodes a position value.
+
+Arguments:
+
+ Sd - the global scratch data
+
+Returns:
+
+ The position value decoded.
+
+--*/
{
UINT16 Val;
UINT32 Mask;
@@ -266,21 +346,6 @@ DecodeP (
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,
@@ -288,6 +353,25 @@ ReadPTLen (
IN UINT16 nbit,
IN UINT16 Special
)
+/*++
+
+Routine Description:
+
+ Reads code lengths for the Extra Set or the Position Set
+
+Arguments:
+
+ Sd - The global scratch data
+ nn - Number of symbols
+ nbit - Number of bits needed to represent nn
+ Special - The special symbol that needs to be taken care of
+
+Returns:
+
+ 0 - OK.
+ BAD_TABLE - Table is corrupted.
+
+--*/
{
UINT16 Number;
UINT16 CharC;
@@ -343,19 +427,23 @@ ReadPTLen (
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
)
+/*++
+
+Routine Description:
+
+ Reads code lengths for Char&Len Set.
+
+Arguments:
+
+ Sd - the global scratch data
+
+Returns: (VOID)
+
+--*/
{
UINT16 Number;
UINT16 CharC;
@@ -432,22 +520,25 @@ ReadCLen (
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
)
+/*++
+
+Routine Description:
+
+ Decode a character/length value.
+
+Arguments:
+
+ Sd - The global scratch data.
+
+Returns:
+
+ The value decoded.
+
+--*/
{
UINT16 Index2;
UINT32 Mask;
@@ -494,15 +585,23 @@ DecodeC (
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
)
+/*++
+
+Routine Description:
+
+ Decode the source data and put the resulting data into the destination buffer.
+
+Arguments:
+
+ Sd - The global scratch data
+
+Returns: (VOID)
+
+ --*/
{
UINT16 BytesRemain;
UINT32 DataIdx;
@@ -532,7 +631,7 @@ Decode (
//
// Process a Pointer
//
- CharC = (UINT16) (CharC - (UINT8_MAX + 1 - THRESHOLD));
+ CharC = (UINT16) (CharC - (BIT8 - THRESHOLD));
BytesRemain = CharC;
@@ -554,83 +653,103 @@ 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
+EFI_STATUS
+GetInfo (
+ IN VOID *Source,
+ IN UINT32 SrcSize,
+ OUT UINT32 *DstSize,
+ OUT UINT32 *ScratchSize
)
-{
- UINT32 CompressedSize;
+/*++
- ASSERT (Source != NULL);
- ASSERT (DestinationSize != NULL);
- ASSERT (ScratchSize != NULL);
+Routine Description:
- if (SourceSize < 8) {
- return RETURN_INVALID_PARAMETER;
- }
+ The internal implementation of *_DECOMPRESS_PROTOCOL.GetInfo().
- CompressedSize = *(UINT32 *) Source;
- if (SourceSize < (CompressedSize + 8)) {
- return RETURN_INVALID_PARAMETER;
- }
+Arguments:
+
+ Source - The source buffer containing the compressed data.
+ SrcSize - The size of source buffer
+ DstSize - The size of destination buffer.
+ ScratchSize - The size of scratch buffer.
+
+Returns:
+
+ EFI_SUCCESS - The size of destination buffer and the size of scratch buffer are successfully retrieved.
+ EFI_INVALID_PARAMETER - The source data is corrupted
+
+--*/
+{
+ UINT8 *Src;
*ScratchSize = sizeof (SCRATCH_DATA);
- *DestinationSize = *((UINT32 *) Source + 1);
- return RETURN_SUCCESS;
+ Src = Source;
+ if (SrcSize < 8) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ *DstSize = Src[4] + (Src[5] << 8) + (Src[6] << 16) + (Src[7] << 24);
+ return EFI_SUCCESS;
}
-/**
+EFI_STATUS
+Decompress (
+ IN VOID *Source,
+ IN UINT32 SrcSize,
+ IN OUT VOID *Destination,
+ IN UINT32 DstSize,
+ IN OUT VOID *Scratch,
+ IN UINT32 ScratchSize,
+ IN UINT8 Version
+ )
+/*++
+
+Routine Description:
+
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
+Arguments:
- @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;
+ Source - The source buffer containing the compressed data.
+ SrcSize - The size of source buffer
+ Destination - The destination buffer to store the decompressed data
+ DstSize - The size of destination buffer.
+ Scratch - The buffer used internally by the decompress routine. This buffer is needed to store intermediate data.
+ ScratchSize - The size of scratch buffer.
+ Version - The version of de/compression algorithm.
+ Version 1 for EFI 1.1 de/compression algorithm.
+ Version 2 for Tiano de/compression algorithm.
+
+Returns:
- ASSERT (Source != NULL);
- ASSERT (Destination != NULL);
- ASSERT (Scratch != NULL);
+ EFI_SUCCESS - Decompression is successfull
+ EFI_INVALID_PARAMETER - The source data is corrupted
+--*/
+{
+ UINT32 CompSize;
+ UINT32 OrigSize;
+ EFI_STATUS Status;
+ SCRATCH_DATA *Sd;
+ UINT8 *Src;
+ UINT8 *Dst;
+ volatile UINT32 Index;
+
+ Status = EFI_SUCCESS;
Src = Source;
Dst = Destination;
+ if (ScratchSize < sizeof (SCRATCH_DATA)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
Sd = (SCRATCH_DATA *) Scratch;
+ if (SrcSize < 8) {
+ return EFI_INVALID_PARAMETER;
+ }
+
CompSize = Src[0] + (Src[1] << 8) + (Src[2] << 16) + (Src[3] << 24);
OrigSize = Src[4] + (Src[5] << 8) + (Src[6] << 16) + (Src[7] << 24);
@@ -638,7 +757,15 @@ UefiTianoDecompress (
// If compressed file size is 0, return
//
if (OrigSize == 0) {
- return RETURN_SUCCESS;
+ return Status;
+ }
+
+ if (SrcSize < CompSize + 8) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (DstSize != OrigSize) {
+ return EFI_INVALID_PARAMETER;
}
Src = Src + 8;
@@ -646,22 +773,29 @@ UefiTianoDecompress (
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 EFI 1.1 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);
+ case 1:
+ Sd->mPBit = 4;
+ break;
+
+ case 2:
+ Sd->mPBit = 5;
+ break;
+
+ default:
+ //
+ // Currently, only have 2 versions
+ //
+ return EFI_INVALID_PARAMETER;
}
- Sd->mSrcBase = (UINT8 *)Src;
+
+ Sd->mSrcBase = Src;
Sd->mDstBase = Dst;
Sd->mCompSize = CompSize;
Sd->mOrigSize = OrigSize;
@@ -680,133 +814,177 @@ UefiTianoDecompress (
//
// Something wrong with the source
//
- return RETURN_INVALID_PARAMETER;
+ Status = EFI_INVALID_PARAMETER;
}
- return RETURN_SUCCESS;
+ return Status;
}
-/**
- 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
+EFI_STATUS
EFIAPI
-UefiDecompress (
- IN CONST VOID *Source,
- IN OUT VOID *Destination,
- IN OUT VOID *Scratch
+EfiGetInfo (
+ IN VOID *Source,
+ IN UINT32 SrcSize,
+ OUT UINT32 *DstSize,
+ OUT UINT32 *ScratchSize
)
-{
- return UefiTianoDecompress (Source, Destination, Scratch, 1);
-}
+/*++
+
+Routine Description:
+
+ The implementation is same as that of EFI_DECOMPRESS_PROTOCOL.GetInfo().
+
+Arguments:
+
+ This - The protocol instance pointer
+ Source - The source buffer containing the compressed data.
+ SrcSize - The size of source buffer
+ DstSize - The size of destination buffer.
+ ScratchSize - The size of scratch buffer.
-/**
- The internal implementation of Tiano decompress GetInfo.
+Returns:
- @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.
+ EFI_SUCCESS - The size of destination buffer and the size of scratch buffer are successfully retrieved.
+ EFI_INVALID_PARAMETER - The source data is corrupted
- @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
+--*/
+{
+ return GetInfo (
+ Source,
+ SrcSize,
+ DstSize,
+ ScratchSize
+ );
+}
+
+EFI_STATUS
EFIAPI
-TianoDecompressGetInfo (
- IN CONST VOID *InputSection,
- OUT UINT32 *OutputBufferSize,
- OUT UINT32 *ScratchBufferSize,
- OUT UINT16 *SectionAttribute
+EfiDecompress (
+ IN VOID *Source,
+ IN UINT32 SrcSize,
+ IN OUT VOID *Destination,
+ IN UINT32 DstSize,
+ IN OUT VOID *Scratch,
+ IN UINT32 ScratchSize
)
+/*++
-{
- ASSERT (SectionAttribute != NULL);
+Routine Description:
- if (InputSection == NULL) {
- return RETURN_INVALID_PARAMETER;
- }
+ The implementation is same as that of EFI_DECOMPRESS_PROTOCOL.Decompress().
- 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;
+Arguments:
+
+ This - The protocol instance pointer
+ Source - The source buffer containing the compressed data.
+ SrcSize - The size of source buffer
+ Destination - The destination buffer to store the decompressed data
+ DstSize - The size of destination buffer.
+ Scratch - The buffer used internally by the decompress routine. This buffer is needed to store intermediate data.
+ ScratchSize - The size of scratch buffer.
+
+Returns:
+
+ EFI_SUCCESS - Decompression is successfull
+ EFI_INVALID_PARAMETER - The source data is corrupted
+--*/
+{
//
- // Call Tiano GetInfo to get the required size info.
+ // For EFI 1.1 de/compression algorithm, the version is 1.
//
- 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
- );
+ return Decompress (
+ Source,
+ SrcSize,
+ Destination,
+ DstSize,
+ Scratch,
+ ScratchSize,
+ 1
+ );
}
-/**
- The implementation of Tiano Decompress().
+EFI_STATUS
+EFIAPI
+TianoGetInfo (
+ IN VOID *Source,
+ IN UINT32 SrcSize,
+ OUT UINT32 *DstSize,
+ OUT UINT32 *ScratchSize
+ )
+/*++
+
+Routine Description:
+
+ The implementation is same as that of EFI_TIANO_DECOMPRESS_PROTOCOL.GetInfo().
+
+Arguments:
- @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.
+ This - The protocol instance pointer
+ Source - The source buffer containing the compressed data.
+ SrcSize - The size of source buffer
+ DstSize - The size of destination buffer.
+ ScratchSize - The size of scratch 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.
+Returns:
-**/
-RETURN_STATUS
+ EFI_SUCCESS - The size of destination buffer and the size of scratch buffer are successfully retrieved.
+ EFI_INVALID_PARAMETER - The source data is corrupted
+
+--*/
+{
+ return GetInfo (
+ Source,
+ SrcSize,
+ DstSize,
+ ScratchSize
+ );
+}
+
+EFI_STATUS
EFIAPI
TianoDecompress (
- IN CONST VOID *InputSection,
- OUT VOID **OutputBuffer,
- IN VOID *ScratchBuffer, OPTIONAL
- OUT UINT32 *AuthenticationStatus
+ IN VOID *Source,
+ IN UINT32 SrcSize,
+ IN OUT VOID *Destination,
+ IN UINT32 DstSize,
+ IN OUT VOID *Scratch,
+ IN UINT32 ScratchSize
)
-{
- ASSERT (OutputBuffer != NULL);
+/*++
- if (InputSection == NULL) {
- return RETURN_INVALID_PARAMETER;
- }
+Routine Description:
- if (!CompareGuid (
- &gTianoCustomDecompressGuid,
- &(((EFI_GUID_DEFINED_SECTION *) InputSection)->SectionDefinitionGuid))) {
- return RETURN_INVALID_PARAMETER;
- }
+ The implementation is same as that of EFI_TIANO_DECOMPRESS_PROTOCOL.Decompress().
+Arguments:
+
+ This - The protocol instance pointer
+ Source - The source buffer containing the compressed data.
+ SrcSize - The size of source buffer
+ Destination - The destination buffer to store the decompressed data
+ DstSize - The size of destination buffer.
+ Scratch - The buffer used internally by the decompress routine. This buffer is needed to store intermediate data.
+ ScratchSize - The size of scratch buffer.
+
+Returns:
+
+ EFI_SUCCESS - Decompression is successfull
+ EFI_INVALID_PARAMETER - The source data is corrupted
+
+--*/
+{
//
- // Set Authentication to Zero.
- //
- *AuthenticationStatus = 0;
-
- //
- // Call Tiano Decompress to get the raw data
+ // For Tiano de/compression algorithm, the version is 2.
//
- return UefiTianoDecompress (
- (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION *) InputSection)->DataOffset,
- *OutputBuffer,
- ScratchBuffer,
+ return Decompress (
+ Source,
+ SrcSize,
+ Destination,
+ DstSize,
+ Scratch,
+ ScratchSize,
2
- );
+ );
}
-