diff options
Diffstat (limited to 'BaseTools/Source/C/Common/Decompress.c')
| -rw-r--r-- | BaseTools/Source/C/Common/Decompress.c | 382 |
1 files changed, 135 insertions, 247 deletions
diff --git a/BaseTools/Source/C/Common/Decompress.c b/BaseTools/Source/C/Common/Decompress.c index d85098f..a0f54c0 100644 --- a/BaseTools/Source/C/Common/Decompress.c +++ b/BaseTools/Source/C/Common/Decompress.c @@ -62,26 +62,18 @@ typedef struct { STATIC UINT16 mPbit = EFIPBIT;
+/**
+ Shift mBitBuf NumOfBits left. Read in NumOfBits of bits from source.
+
+ @param Sd The global scratch data
+ @param NumOfBit The number of bits to shift and read.
+**/
STATIC
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
- NumOfBit - The number of bits to shift and read.
-
-Returns: (VOID)
-
---*/
{
Sd->mBitBuf = (UINT32) (((UINT64)Sd->mBitBuf) << NumOfBits);
@@ -112,30 +104,22 @@ Returns: (VOID) Sd->mBitBuf |= Sd->mSubBitBuf >> Sd->mBitCount;
}
+/**
+ 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.
+**/
STATIC
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.
-
-Arguments:
-
- Sd - The global scratch data.
- NumOfBits - The number of bits to pop and read.
-
-Returns:
-
- The bits that are popped out.
-
---*/
{
UINT32 OutBits;
@@ -146,6 +130,18 @@ Returns: return OutBits;
}
+/**
+ Creates Huffman Code mapping table 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.
+**/
STATIC
UINT16
MakeTable (
@@ -155,26 +151,6 @@ 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];
@@ -290,26 +266,18 @@ Returns: return 0;
}
+/**
+ Decodes a position value.
+
+ @param Sd the global scratch data
+
+ @return The position value decoded.
+**/
STATIC
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;
@@ -344,6 +312,17 @@ Returns: return Pos;
}
+/**
+ Reads code lengths for the Extra Set or the Position Set
+
+ @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.
+**/
STATIC
UINT16
ReadPTLen (
@@ -352,25 +331,6 @@ 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;
@@ -430,24 +390,16 @@ Returns: return MakeTable (Sd, nn, Sd->mPTLen, 8, Sd->mPTTable);
}
+/**
+ Reads code lengths for Char&Len Set.
+
+ @param Sd the global scratch data
+**/
STATIC
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;
@@ -526,26 +478,18 @@ Returns: (VOID) return ;
}
+/**
+ Decode a character/length value.
+
+ @param Sd The global scratch data.
+
+ @return The value decoded.
+**/
STATIC
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;
@@ -592,24 +536,16 @@ Returns: return Index2;
}
+/**
+ Decode the source data and put the resulting data into the destination buffer.
+
+ @param Sd The global scratch data
+ **/
STATIC
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;
@@ -669,6 +605,17 @@ Returns: (VOID) return ;
}
+/**
+ The implementation of EFI_DECOMPRESS_PROTOCOL.GetInfo().
+
+ @param Source The source buffer containing the compressed data.
+ @param SrcSize The size of source buffer
+ @param DstSize The size of destination buffer.
+ @param ScratchSize The size of scratch buffer.
+
+ @retval EFI_SUCCESS - The size of destination buffer and the size of scratch buffer are successfully retrieved.
+ @retval EFI_INVALID_PARAMETER - The source data is corrupted
+**/
EFI_STATUS
GetInfo (
IN VOID *Source,
@@ -676,25 +623,6 @@ GetInfo ( OUT UINT32 *DstSize,
OUT UINT32 *ScratchSize
)
-/*++
-
-Routine Description:
-
- The implementation of EFI_DECOMPRESS_PROTOCOL.GetInfo().
-
-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;
UINT32 CompSize;
@@ -716,6 +644,19 @@ Returns: return EFI_SUCCESS;
}
+/**
+ The implementation Efi and Tiano Decompress().
+
+ @param Source - The source buffer containing the compressed data.
+ @param SrcSize - The size of source buffer
+ @param Destination - The destination buffer to store the decompressed data
+ @param DstSize - The size of destination buffer.
+ @param Scratch - The buffer used internally by the decompress routine. This buffer is needed to store intermediate data.
+ @param ScratchSize - The size of scratch buffer.
+
+ @retval EFI_SUCCESS - Decompression is successful
+ @retval EFI_INVALID_PARAMETER - The source data is corrupted
+**/
EFI_STATUS
Decompress (
IN VOID *Source,
@@ -725,27 +666,6 @@ Decompress ( IN OUT VOID *Scratch,
IN UINT32 ScratchSize
)
-/*++
-
-Routine Description:
-
- The implementation Efi and Tiano Decompress().
-
-Arguments:
-
- 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 successful
- EFI_INVALID_PARAMETER - The source data is corrupted
-
---*/
{
UINT32 Index;
UINT32 CompSize;
@@ -811,6 +731,17 @@ Returns: return Status;
}
+/**
+ The implementation Efi Decompress GetInfo().
+
+ @param Source The source buffer containing the compressed data.
+ @param SrcSize The size of source buffer
+ @param DstSize The size of destination buffer.
+ @param ScratchSize The size of scratch buffer.
+
+ @retval EFI_SUCCESS The size of destination buffer and the size of scratch buffer are successfully retrieved.
+ @retval EFI_INVALID_PARAMETER The source data is corrupted
+**/
EFI_STATUS
EfiGetInfo (
IN VOID *Source,
@@ -818,29 +749,21 @@ EfiGetInfo ( OUT UINT32 *DstSize,
OUT UINT32 *ScratchSize
)
-/*++
-
-Routine Description:
-
- The implementation Efi Decompress GetInfo().
-
-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
-
---*/
{
return GetInfo (Source, SrcSize, DstSize, ScratchSize);
}
+/**
+ The implementation Tiano Decompress GetInfo().
+
+ @param Source The source buffer containing the compressed data.
+ @param SrcSize The size of source buffer
+ @param DstSize The size of destination buffer.
+ @param ScratchSize The size of scratch buffer.
+
+ @retval EFI_SUCCESS The size of destination buffer and the size of scratch buffer are successfully retrieved.
+ @retval EFI_INVALID_PARAMETER The source data is corrupted
+**/
EFI_STATUS
TianoGetInfo (
IN VOID *Source,
@@ -848,29 +771,23 @@ TianoGetInfo ( OUT UINT32 *DstSize,
OUT UINT32 *ScratchSize
)
-/*++
-
-Routine Description:
-
- The implementation Tiano Decompress GetInfo().
-
-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
-
---*/
{
return GetInfo (Source, SrcSize, DstSize, ScratchSize);
}
+/**
+ The implementation of Efi Decompress().
+
+ @param Source The source buffer containing the compressed data.
+ @param SrcSize The size of source buffer
+ @param Destination The destination buffer to store the decompressed data
+ @param DstSize The size of destination buffer.
+ @param Scratch The buffer used internally by the decompress routine. This buffer is needed to store intermediate data.
+ @param ScratchSize The size of scratch buffer.
+
+ @retval EFI_SUCCESS Decompression is successful
+ @retval EFI_INVALID_PARAMETER The source data is corrupted
+**/
EFI_STATUS
EfiDecompress (
IN VOID *Source,
@@ -880,32 +797,24 @@ EfiDecompress ( IN OUT VOID *Scratch,
IN UINT32 ScratchSize
)
-/*++
-
-Routine Description:
-
- The implementation of Efi Decompress().
-
-Arguments:
-
- 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 successful
- EFI_INVALID_PARAMETER - The source data is corrupted
-
---*/
{
mPbit = EFIPBIT;
return Decompress (Source, SrcSize, Destination, DstSize, Scratch, ScratchSize);
}
+/**
+ The implementation of Tiano Decompress().
+
+ @param Source The source buffer containing the compressed data.
+ @param SrcSize The size of source buffer
+ @param Destination The destination buffer to store the decompressed data
+ @param DstSize The size of destination buffer.
+ @param Scratch The buffer used internally by the decompress routine. This buffer is needed to store intermediate data.
+ @param ScratchSize The size of scratch buffer.
+
+ @retval EFI_SUCCESS Decompression is successful
+ @retval EFI_INVALID_PARAMETER The source data is corrupted
+**/
EFI_STATUS
TianoDecompress (
IN VOID *Source,
@@ -915,27 +824,6 @@ TianoDecompress ( IN OUT VOID *Scratch,
IN UINT32 ScratchSize
)
-/*++
-
-Routine Description:
-
- The implementation of Tiano Decompress().
-
-Arguments:
-
- 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 successful
- EFI_INVALID_PARAMETER - The source data is corrupted
-
---*/
{
mPbit = MAXPBIT;
return Decompress (Source, SrcSize, Destination, DstSize, Scratch, ScratchSize);
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