projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 3eb9473e | 1 | /*++\r |
| 2 | \r | |
| 4ac4deb7 | 3 | Copyright (c) 2004 - 2010, Intel Corporation. All rights reserved.<BR>\r |
| 4ea9375a | 4 | This program and the accompanying materials \r |
| 3eb9473e | 5 | are licensed and made available under the terms and conditions of the BSD License \r |
| 6 | which accompanies this distribution. The full text of the license may be found at \r | |
| 7 | http://opensource.org/licenses/bsd-license.php \r | |
| 8 | \r | |
| 9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
| 10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r | |
| 11 | \r | |
| 12 | Module Name:\r | |
| 13 | \r | |
| 14 | Decompress.c\r | |
| 15 | \r | |
| 16 | Abstract:\r | |
| 17 | \r | |
| 18 | Decompressor. Algorithm Ported from OPSD code (Decomp.asm)\r | |
| 19 | \r | |
| 20 | --*/\r | |
| 21 | \r | |
| 22 | #include "TianoCommon.h"\r | |
| 23 | #include EFI_PROTOCOL_DEFINITION (Decompress)\r | |
| 24 | #include EFI_PROTOCOL_DEFINITION (TianoDecompress)\r | |
| 25 | \r | |
| 26 | EFI_STATUS\r | |
| 27 | EFIAPI\r | |
| 28 | EfiGetInfo (\r | |
| 29 | IN EFI_DECOMPRESS_PROTOCOL *This,\r | |
| 30 | IN VOID *Source,\r | |
| 31 | IN UINT32 SrcSize,\r | |
| 32 | OUT UINT32 *DstSize,\r | |
| 33 | OUT UINT32 *ScratchSize\r | |
| 34 | );\r | |
| 35 | \r | |
| 36 | EFI_STATUS\r | |
| 37 | EFIAPI\r | |
| 38 | EfiDecompress (\r | |
| 39 | IN EFI_DECOMPRESS_PROTOCOL *This,\r | |
| 40 | IN VOID *Source,\r | |
| 41 | IN UINT32 SrcSize,\r | |
| 42 | IN OUT VOID *Destination,\r | |
| 43 | IN UINT32 DstSize,\r | |
| 44 | IN OUT VOID *Scratch,\r | |
| 45 | IN UINT32 ScratchSize\r | |
| 46 | );\r | |
| 47 | \r | |
| 48 | EFI_STATUS\r | |
| 49 | EFIAPI\r | |
| 50 | TianoGetInfo (\r | |
| 51 | IN EFI_TIANO_DECOMPRESS_PROTOCOL *This,\r | |
| 52 | IN VOID *Source,\r | |
| 53 | IN UINT32 SrcSize,\r | |
| 54 | OUT UINT32 *DstSize,\r | |
| 55 | OUT UINT32 *ScratchSize\r | |
| 56 | );\r | |
| 57 | \r | |
| 58 | EFI_STATUS\r | |
| 59 | EFIAPI\r | |
| 60 | TianoDecompress (\r | |
| 61 | IN EFI_TIANO_DECOMPRESS_PROTOCOL *This,\r | |
| 62 | IN VOID *Source,\r | |
| 63 | IN UINT32 SrcSize,\r | |
| 64 | IN OUT VOID *Destination,\r | |
| 65 | IN UINT32 DstSize,\r | |
| 66 | IN OUT VOID *Scratch,\r | |
| 67 | IN UINT32 ScratchSize\r | |
| 68 | );\r | |
| 69 | \r | |
| 70 | //\r | |
| 71 | // The protocol instance\r | |
| 72 | //\r | |
| 73 | \r | |
| 74 | EFI_DECOMPRESS_PROTOCOL mEfiDecompress = {\r | |
| 75 | EfiGetInfo,\r | |
| 76 | EfiDecompress\r | |
| 77 | };\r | |
| 78 | \r | |
| 79 | EFI_TIANO_DECOMPRESS_PROTOCOL mTianoDecompress = {\r | |
| 80 | TianoGetInfo,\r | |
| 81 | TianoDecompress\r | |
| 82 | };\r | |
| 83 | \r | |
| 84 | EFI_STATUS\r | |
| 85 | InstallEfiDecompress (\r | |
| 86 | IN OUT EFI_DECOMPRESS_PROTOCOL **This\r | |
| 87 | )\r | |
| 88 | /*++\r | |
| 89 | \r | |
| 90 | Routine Description:\r | |
| 91 | \r | |
| 92 | Install EFI decompress protocol.\r | |
| 93 | \r | |
| 94 | Arguments:\r | |
| 95 | \r | |
| 96 | This - Pointer to get decompress protocol as output\r | |
| 97 | \r | |
| 98 | Returns:\r | |
| 99 | \r | |
| 100 | EFI_SUCCESS - EFI decompress protocol successfully installed.\r | |
| 101 | \r | |
| 102 | --*/\r | |
| 103 | {\r | |
| 104 | *This = &mEfiDecompress;\r | |
| 105 | return EFI_SUCCESS;\r | |
| 106 | }\r | |
| 107 | \r | |
| 108 | EFI_STATUS\r | |
| 109 | InstallTianoDecompress (\r | |
| 110 | EFI_TIANO_DECOMPRESS_PROTOCOL **This\r | |
| 111 | )\r | |
| 112 | /*++\r | |
| 113 | \r | |
| 114 | Routine Description:\r | |
| 115 | \r | |
| 116 | Install Tiano decompress protocol.\r | |
| 117 | \r | |
| 118 | Arguments:\r | |
| 119 | \r | |
| 120 | This - Pointer to get decompress protocol as output\r | |
| 121 | \r | |
| 122 | Returns:\r | |
| 123 | \r | |
| 124 | EFI_SUCCESS - Tiano decompress protocol successfully installed.\r | |
| 125 | \r | |
| 126 | --*/\r | |
| 127 | {\r | |
| 128 | *This = &mTianoDecompress;\r | |
| 129 | return EFI_SUCCESS;\r | |
| 130 | }\r | |
| 131 | //\r | |
| 132 | // Decompression algorithm begins here\r | |
| 133 | //\r | |
| 134 | #define BITBUFSIZ 32\r | |
| 135 | #define MAXMATCH 256\r | |
| 136 | #define THRESHOLD 3\r | |
| 137 | #define CODE_BIT 16\r | |
| d9ef3b7d | 138 | #ifndef UINT8_MAX\r |
| 3eb9473e | 139 | #define UINT8_MAX 0xff\r |
| d9ef3b7d | 140 | #endif\r |
| 3eb9473e | 141 | #define BAD_TABLE - 1\r |
| 142 | \r | |
| 143 | //\r | |
| 144 | // C: Char&Len Set; P: Position Set; T: exTra Set\r | |
| 145 | //\r | |
| 146 | #define NC (0xff + MAXMATCH + 2 - THRESHOLD)\r | |
| 147 | #define CBIT 9\r | |
| 148 | #define MAXPBIT 5\r | |
| 149 | #define TBIT 5\r | |
| 150 | #define MAXNP ((1U << MAXPBIT) - 1)\r | |
| 151 | #define NT (CODE_BIT + 3)\r | |
| 152 | #if NT > MAXNP\r | |
| 153 | #define NPT NT\r | |
| 154 | #else\r | |
| 155 | #define NPT MAXNP\r | |
| 156 | #endif\r | |
| 157 | \r | |
| 158 | typedef struct {\r | |
| 159 | UINT8 *mSrcBase; // Starting address of compressed data\r | |
| 160 | UINT8 *mDstBase; // Starting address of decompressed data\r | |
| 161 | UINT32 mOutBuf;\r | |
| 162 | UINT32 mInBuf;\r | |
| 163 | \r | |
| 164 | UINT16 mBitCount;\r | |
| 165 | UINT32 mBitBuf;\r | |
| 166 | UINT32 mSubBitBuf;\r | |
| 167 | UINT16 mBlockSize;\r | |
| 168 | UINT32 mCompSize;\r | |
| 169 | UINT32 mOrigSize;\r | |
| 170 | \r | |
| 171 | UINT16 mBadTableFlag;\r | |
| 172 | \r | |
| 173 | UINT16 mLeft[2 * NC - 1];\r | |
| 174 | UINT16 mRight[2 * NC - 1];\r | |
| 175 | UINT8 mCLen[NC];\r | |
| 176 | UINT8 mPTLen[NPT];\r | |
| 177 | UINT16 mCTable[4096];\r | |
| 178 | UINT16 mPTTable[256];\r | |
| 179 | \r | |
| 180 | //\r | |
| 181 | // The length of the field 'Position Set Code Length Array Size' in Block Header.\r | |
| 182 | // For EFI 1.1 de/compression algorithm, mPBit = 4\r | |
| 183 | // For Tiano de/compression algorithm, mPBit = 5\r | |
| 184 | //\r | |
| 185 | UINT8 mPBit;\r | |
| 186 | } SCRATCH_DATA;\r | |
| 187 | \r | |
| 188 | STATIC\r | |
| 189 | VOID\r | |
| 190 | FillBuf (\r | |
| 191 | IN SCRATCH_DATA *Sd,\r | |
| 192 | IN UINT16 NumOfBits\r | |
| 193 | )\r | |
| 194 | /*++\r | |
| 195 | \r | |
| 196 | Routine Description:\r | |
| 197 | \r | |
| 198 | Shift mBitBuf NumOfBits left. Read in NumOfBits of bits from source.\r | |
| 199 | \r | |
| 200 | Arguments:\r | |
| 201 | \r | |
| 202 | Sd - The global scratch data\r | |
| 203 | NumOfBits - The number of bits to shift and read.\r | |
| 204 | \r | |
| 205 | Returns: (VOID)\r | |
| 206 | \r | |
| 207 | --*/\r | |
| 208 | {\r | |
| 209 | Sd->mBitBuf = (UINT32) (Sd->mBitBuf << NumOfBits);\r | |
| 210 | \r | |
| 211 | while (NumOfBits > Sd->mBitCount) {\r | |
| 212 | \r | |
| 213 | Sd->mBitBuf |= (UINT32) (Sd->mSubBitBuf << (NumOfBits = (UINT16) (NumOfBits - Sd->mBitCount)));\r | |
| 214 | \r | |
| 215 | if (Sd->mCompSize > 0) {\r | |
| 216 | //\r | |
| 217 | // Get 1 byte into SubBitBuf\r | |
| 218 | //\r | |
| 219 | Sd->mCompSize--;\r | |
| 220 | Sd->mSubBitBuf = 0;\r | |
| 221 | Sd->mSubBitBuf = Sd->mSrcBase[Sd->mInBuf++];\r | |
| 222 | Sd->mBitCount = 8;\r | |
| 223 | \r | |
| 224 | } else {\r | |
| 225 | //\r | |
| 226 | // No more bits from the source, just pad zero bit.\r | |
| 227 | //\r | |
| 228 | Sd->mSubBitBuf = 0;\r | |
| 229 | Sd->mBitCount = 8;\r | |
| 230 | \r | |
| 231 | }\r | |
| 232 | }\r | |
| 233 | \r | |
| 234 | Sd->mBitCount = (UINT16) (Sd->mBitCount - NumOfBits);\r | |
| 235 | Sd->mBitBuf |= Sd->mSubBitBuf >> Sd->mBitCount;\r | |
| 236 | }\r | |
| 237 | \r | |
| 238 | STATIC\r | |
| 239 | UINT32\r | |
| 240 | GetBits (\r | |
| 241 | IN SCRATCH_DATA *Sd,\r | |
| 242 | IN UINT16 NumOfBits\r | |
| 243 | )\r | |
| 244 | /*++\r | |
| 245 | \r | |
| 246 | Routine Description:\r | |
| 247 | \r | |
| 248 | Get NumOfBits of bits out from mBitBuf. Fill mBitBuf with subsequent \r | |
| 249 | NumOfBits of bits from source. Returns NumOfBits of bits that are \r | |
| 250 | popped out.\r | |
| 251 | \r | |
| 252 | Arguments:\r | |
| 253 | \r | |
| 254 | Sd - The global scratch data.\r | |
| 255 | NumOfBits - The number of bits to pop and read.\r | |
| 256 | \r | |
| 257 | Returns:\r | |
| 258 | \r | |
| 259 | The bits that are popped out.\r | |
| 260 | \r | |
| 261 | --*/\r | |
| 262 | {\r | |
| 263 | UINT32 OutBits;\r | |
| 264 | \r | |
| 265 | OutBits = (UINT32) (Sd->mBitBuf >> (BITBUFSIZ - NumOfBits));\r | |
| 266 | \r | |
| 267 | FillBuf (Sd, NumOfBits);\r | |
| 268 | \r | |
| 269 | return OutBits;\r | |
| 270 | }\r | |
| 271 | \r | |
| 272 | STATIC\r | |
| 273 | UINT16\r | |
| 274 | MakeTable (\r | |
| 275 | IN SCRATCH_DATA *Sd,\r | |
| 276 | IN UINT16 NumOfChar,\r | |
| 277 | IN UINT8 *BitLen,\r | |
| 278 | IN UINT16 TableBits,\r | |
| 279 | OUT UINT16 *Table\r | |
| 280 | )\r | |
| 281 | /*++\r | |
| 282 | \r | |
| 283 | Routine Description:\r | |
| 284 | \r | |
| 285 | Creates Huffman Code mapping table according to code length array.\r | |
| 286 | \r | |
| 287 | Arguments:\r | |
| 288 | \r | |
| 289 | Sd - The global scratch data\r | |
| 290 | NumOfChar - Number of symbols in the symbol set\r | |
| 291 | BitLen - Code length array\r | |
| 292 | TableBits - The width of the mapping table\r | |
| 293 | Table - The table\r | |
| 294 | \r | |
| 295 | Returns:\r | |
| 296 | \r | |
| 297 | 0 - OK.\r | |
| 298 | BAD_TABLE - The table is corrupted.\r | |
| 299 | \r | |
| 300 | --*/\r | |
| 301 | {\r | |
| 302 | UINT16 Count[17];\r | |
| 303 | UINT16 Weight[17];\r | |
| 304 | UINT16 Start[18];\r | |
| 305 | UINT16 *Pointer;\r | |
| 306 | UINT16 Index3;\r | |
| 307 | UINT16 Index;\r | |
| 308 | UINT16 Len;\r | |
| 309 | UINT16 Char;\r | |
| 310 | UINT16 JuBits;\r | |
| 311 | UINT16 Avail;\r | |
| 312 | UINT16 NextCode;\r | |
| 313 | UINT16 Mask;\r | |
| 314 | \r | |
| 4ac4deb7 LG |
315 | //\r |
| 316 | // TableBits should not be greater than 16.\r | |
| 317 | //\r | |
| 318 | if (TableBits >= (sizeof (Count)/sizeof (UINT16))) {\r | |
| 319 | return (UINT16) BAD_TABLE;\r | |
| 320 | }\r | |
| 321 | \r | |
| 322 | //\r | |
| 323 | // Initialize Count array starting from Index 0, as there is a possibility of Count array being uninitialized.\r | |
| 324 | //\r | |
| 325 | for (Index = 0; Index <= 16; Index++) {\r | |
| 3eb9473e | 326 | Count[Index] = 0;\r |
| 327 | }\r | |
| 328 | \r | |
| 329 | for (Index = 0; Index < NumOfChar; Index++) {\r | |
| 4ac4deb7 LG |
330 | //\r |
| 331 | // Count array index should not be greater than or equal to its size.\r | |
| 332 | //\r | |
| 333 | if (BitLen[Index] < (sizeof (Count)/sizeof (UINT16))) {\r | |
| 334 | Count[BitLen[Index]]++;\r | |
| 335 | } else {\r | |
| 336 | return (UINT16) BAD_TABLE;\r | |
| 337 | }\r | |
| 3eb9473e | 338 | }\r |
| 339 | \r | |
| 4ac4deb7 | 340 | Start[0] = 0;\r |
| 3eb9473e | 341 | Start[1] = 0;\r |
| 342 | \r | |
| 343 | for (Index = 1; Index <= 16; Index++) {\r | |
| 344 | Start[Index + 1] = (UINT16) (Start[Index] + (Count[Index] << (16 - Index)));\r | |
| 345 | }\r | |
| 346 | \r | |
| 347 | if (Start[17] != 0) {\r | |
| 348 | /*(1U << 16)*/\r | |
| 349 | return (UINT16) BAD_TABLE;\r | |
| 350 | }\r | |
| 351 | \r | |
| 352 | JuBits = (UINT16) (16 - TableBits);\r | |
| 353 | \r | |
| 354 | for (Index = 1; Index <= TableBits; Index++) {\r | |
| 355 | Start[Index] >>= JuBits;\r | |
| 356 | Weight[Index] = (UINT16) (1U << (TableBits - Index));\r | |
| 357 | }\r | |
| 358 | \r | |
| 359 | while (Index <= 16) {\r | |
| e1a09a0e | 360 | Weight[Index] = (UINT16) (1U << (16 - Index));\r |
| 361 | Index++;\r | |
| 3eb9473e | 362 | }\r |
| 363 | \r | |
| 364 | Index = (UINT16) (Start[TableBits + 1] >> JuBits);\r | |
| 365 | \r | |
| 366 | if (Index != 0) {\r | |
| 367 | Index3 = (UINT16) (1U << TableBits);\r | |
| 368 | while (Index != Index3) {\r | |
| 369 | Table[Index++] = 0;\r | |
| 370 | }\r | |
| 371 | }\r | |
| 372 | \r | |
| 373 | Avail = NumOfChar;\r | |
| 374 | Mask = (UINT16) (1U << (15 - TableBits));\r | |
| 375 | \r | |
| 376 | for (Char = 0; Char < NumOfChar; Char++) {\r | |
| 377 | \r | |
| 378 | Len = BitLen[Char];\r | |
| 4ac4deb7 | 379 | if (Len == 0 || Len >= 17) {\r |
| 3eb9473e | 380 | continue;\r |
| 381 | }\r | |
| 382 | \r | |
| 383 | NextCode = (UINT16) (Start[Len] + Weight[Len]);\r | |
| 384 | \r | |
| 385 | if (Len <= TableBits) {\r | |
| 386 | \r | |
| 387 | for (Index = Start[Len]; Index < NextCode; Index++) {\r | |
| 388 | Table[Index] = Char;\r | |
| 389 | }\r | |
| 390 | \r | |
| 391 | } else {\r | |
| 392 | \r | |
| 393 | Index3 = Start[Len];\r | |
| 394 | Pointer = &Table[Index3 >> JuBits];\r | |
| 395 | Index = (UINT16) (Len - TableBits);\r | |
| 396 | \r | |
| 397 | while (Index != 0) {\r | |
| 4ac4deb7 LG |
398 | //\r |
| 399 | // Avail should be lesser than size of mRight and mLeft to prevent buffer overflow.\r | |
| 400 | //\r | |
| 401 | if ((*Pointer == 0) && (Avail < sizeof (Sd->mRight)/sizeof (UINT16)) && (Avail < sizeof (Sd->mLeft)/sizeof (UINT16))) {\r | |
| 3eb9473e | 402 | Sd->mRight[Avail] = Sd->mLeft[Avail] = 0;\r |
| 403 | *Pointer = Avail++;\r | |
| 404 | }\r | |
| 405 | \r | |
| 4ac4deb7 LG |
406 | //\r |
| 407 | // *Pointer should be lesser than size of mRight and mLeft to prevent buffer overflow.\r | |
| 408 | //\r | |
| 409 | if ((Index3 & Mask) && (*Pointer < (sizeof (Sd->mRight)/sizeof (UINT16)))) {\r | |
| 3eb9473e | 410 | Pointer = &Sd->mRight[*Pointer];\r |
| 4ac4deb7 | 411 | } else if (*Pointer < (sizeof (Sd->mLeft)/sizeof (UINT16))) {\r |
| 3eb9473e | 412 | Pointer = &Sd->mLeft[*Pointer];\r |
| 413 | }\r | |
| 414 | \r | |
| 415 | Index3 <<= 1;\r | |
| 416 | Index--;\r | |
| 417 | }\r | |
| 418 | \r | |
| 419 | *Pointer = Char;\r | |
| 420 | \r | |
| 421 | }\r | |
| 422 | \r | |
| 423 | Start[Len] = NextCode;\r | |
| 424 | }\r | |
| 425 | //\r | |
| 426 | // Succeeds\r | |
| 427 | //\r | |
| 428 | return 0;\r | |
| 429 | }\r | |
| 430 | \r | |
| 431 | STATIC\r | |
| 432 | UINT32\r | |
| 433 | DecodeP (\r | |
| 434 | IN SCRATCH_DATA *Sd\r | |
| 435 | )\r | |
| 436 | /*++\r | |
| 437 | \r | |
| 438 | Routine Description:\r | |
| 439 | \r | |
| 440 | Decodes a position value.\r | |
| 441 | \r | |
| 442 | Arguments:\r | |
| 443 | \r | |
| 444 | Sd - the global scratch data\r | |
| 445 | \r | |
| 446 | Returns:\r | |
| 447 | \r | |
| 448 | The position value decoded.\r | |
| 449 | \r | |
| 450 | --*/\r | |
| 451 | {\r | |
| 452 | UINT16 Val;\r | |
| 453 | UINT32 Mask;\r | |
| 454 | UINT32 Pos;\r | |
| 455 | \r | |
| 456 | Val = Sd->mPTTable[Sd->mBitBuf >> (BITBUFSIZ - 8)];\r | |
| 457 | \r | |
| 458 | if (Val >= MAXNP) {\r | |
| 459 | Mask = 1U << (BITBUFSIZ - 1 - 8);\r | |
| 460 | \r | |
| 461 | do {\r | |
| 462 | \r | |
| 463 | if (Sd->mBitBuf & Mask) {\r | |
| 464 | Val = Sd->mRight[Val];\r | |
| 465 | } else {\r | |
| 466 | Val = Sd->mLeft[Val];\r | |
| 467 | }\r | |
| 468 | \r | |
| 469 | Mask >>= 1;\r | |
| 470 | } while (Val >= MAXNP);\r | |
| 471 | }\r | |
| 472 | //\r | |
| 473 | // Advance what we have read\r | |
| 474 | //\r | |
| 475 | FillBuf (Sd, Sd->mPTLen[Val]);\r | |
| 476 | \r | |
| 477 | Pos = Val;\r | |
| 478 | if (Val > 1) {\r | |
| 479 | Pos = (UINT32) ((1U << (Val - 1)) + GetBits (Sd, (UINT16) (Val - 1)));\r | |
| 480 | }\r | |
| 481 | \r | |
| 482 | return Pos;\r | |
| 483 | }\r | |
| 484 | \r | |
| 485 | STATIC\r | |
| 486 | UINT16\r | |
| 487 | ReadPTLen (\r | |
| 488 | IN SCRATCH_DATA *Sd,\r | |
| 489 | IN UINT16 nn,\r | |
| 490 | IN UINT16 nbit,\r | |
| 491 | IN UINT16 Special\r | |
| 492 | )\r | |
| 493 | /*++\r | |
| 494 | \r | |
| 495 | Routine Description:\r | |
| 496 | \r | |
| 497 | Reads code lengths for the Extra Set or the Position Set\r | |
| 498 | \r | |
| 499 | Arguments:\r | |
| 500 | \r | |
| 501 | Sd - The global scratch data\r | |
| 502 | nn - Number of symbols\r | |
| 503 | nbit - Number of bits needed to represent nn\r | |
| 504 | Special - The special symbol that needs to be taken care of \r | |
| 505 | \r | |
| 506 | Returns:\r | |
| 507 | \r | |
| 508 | 0 - OK.\r | |
| 509 | BAD_TABLE - Table is corrupted.\r | |
| 510 | \r | |
| 511 | --*/\r | |
| 512 | {\r | |
| 513 | UINT16 Number;\r | |
| 514 | UINT16 CharC;\r | |
| 515 | UINT16 Index;\r | |
| 516 | UINT32 Mask;\r | |
| 517 | \r | |
| 518 | Number = (UINT16) GetBits (Sd, nbit);\r | |
| 519 | \r | |
| 4ac4deb7 LG |
520 | if ((Number > sizeof (Sd->mPTLen)) || (nn > sizeof (Sd->mPTLen))) {\r |
| 521 | //\r | |
| 522 | // Fail if Number or nn is greater than size of mPTLen\r | |
| 523 | //\r | |
| 524 | return (UINT16) BAD_TABLE;\r | |
| 525 | }\r | |
| 526 | \r | |
| 3eb9473e | 527 | if (Number == 0) {\r |
| 528 | CharC = (UINT16) GetBits (Sd, nbit);\r | |
| 529 | \r | |
| 530 | for (Index = 0; Index < 256; Index++) {\r | |
| 531 | Sd->mPTTable[Index] = CharC;\r | |
| 532 | }\r | |
| 533 | \r | |
| 534 | for (Index = 0; Index < nn; Index++) {\r | |
| 535 | Sd->mPTLen[Index] = 0;\r | |
| 536 | }\r | |
| 537 | \r | |
| 538 | return 0;\r | |
| 539 | }\r | |
| 540 | \r | |
| 541 | Index = 0;\r | |
| 542 | \r | |
| 543 | while (Index < Number) {\r | |
| 544 | \r | |
| 545 | CharC = (UINT16) (Sd->mBitBuf >> (BITBUFSIZ - 3));\r | |
| 546 | \r | |
| 547 | if (CharC == 7) {\r | |
| 548 | Mask = 1U << (BITBUFSIZ - 1 - 3);\r | |
| 549 | while (Mask & Sd->mBitBuf) {\r | |
| 550 | Mask >>= 1;\r | |
| 551 | CharC += 1;\r | |
| 552 | }\r | |
| 553 | }\r | |
| 554 | \r | |
| 555 | FillBuf (Sd, (UINT16) ((CharC < 7) ? 3 : CharC - 3));\r | |
| 556 | \r | |
| 557 | Sd->mPTLen[Index++] = (UINT8) CharC;\r | |
| 558 | \r | |
| 559 | if (Index == Special) {\r | |
| 560 | CharC = (UINT16) GetBits (Sd, 2);\r | |
| 561 | while ((INT16) (--CharC) >= 0) {\r | |
| 4ac4deb7 LG |
562 | if (Index >= sizeof (Sd->mPTLen)) {\r |
| 563 | //\r | |
| 564 | // Fail if Index is greater than or equal to mPTLen\r | |
| 565 | //\r | |
| 566 | return (UINT16) BAD_TABLE;\r | |
| 567 | }\r | |
| 3eb9473e | 568 | Sd->mPTLen[Index++] = 0;\r |
| 569 | }\r | |
| 570 | }\r | |
| 571 | }\r | |
| 572 | \r | |
| 573 | while (Index < nn) {\r | |
| 574 | Sd->mPTLen[Index++] = 0;\r | |
| 575 | }\r | |
| 576 | \r | |
| 577 | return MakeTable (Sd, nn, Sd->mPTLen, 8, Sd->mPTTable);\r | |
| 578 | }\r | |
| 579 | \r | |
| 580 | STATIC\r | |
| 581 | VOID\r | |
| 582 | ReadCLen (\r | |
| 583 | SCRATCH_DATA *Sd\r | |
| 584 | )\r | |
| 585 | /*++\r | |
| 586 | \r | |
| 587 | Routine Description:\r | |
| 588 | \r | |
| 589 | Reads code lengths for Char&Len Set.\r | |
| 590 | \r | |
| 591 | Arguments:\r | |
| 592 | \r | |
| 593 | Sd - the global scratch data\r | |
| 594 | \r | |
| 595 | Returns: (VOID)\r | |
| 596 | \r | |
| 597 | --*/\r | |
| 598 | {\r | |
| 599 | UINT16 Number;\r | |
| 600 | UINT16 CharC;\r | |
| 601 | UINT16 Index;\r | |
| 602 | UINT32 Mask;\r | |
| 603 | \r | |
| 604 | Number = (UINT16) GetBits (Sd, CBIT);\r | |
| 605 | \r | |
| 606 | if (Number == 0) {\r | |
| 607 | CharC = (UINT16) GetBits (Sd, CBIT);\r | |
| 608 | \r | |
| 609 | for (Index = 0; Index < NC; Index++) {\r | |
| 610 | Sd->mCLen[Index] = 0;\r | |
| 611 | }\r | |
| 612 | \r | |
| 613 | for (Index = 0; Index < 4096; Index++) {\r | |
| 614 | Sd->mCTable[Index] = CharC;\r | |
| 615 | }\r | |
| 616 | \r | |
| 617 | return ;\r | |
| 618 | }\r | |
| 619 | \r | |
| 620 | Index = 0;\r | |
| 621 | while (Index < Number) {\r | |
| 622 | \r | |
| 623 | CharC = Sd->mPTTable[Sd->mBitBuf >> (BITBUFSIZ - 8)];\r | |
| 624 | if (CharC >= NT) {\r | |
| 625 | Mask = 1U << (BITBUFSIZ - 1 - 8);\r | |
| 626 | \r | |
| 627 | do {\r | |
| 628 | \r | |
| 629 | if (Mask & Sd->mBitBuf) {\r | |
| 630 | CharC = Sd->mRight[CharC];\r | |
| 631 | } else {\r | |
| 632 | CharC = Sd->mLeft[CharC];\r | |
| 633 | }\r | |
| 634 | \r | |
| 635 | Mask >>= 1;\r | |
| 636 | \r | |
| 637 | } while (CharC >= NT);\r | |
| 638 | }\r | |
| 639 | //\r | |
| 640 | // Advance what we have read\r | |
| 641 | //\r | |
| 642 | FillBuf (Sd, Sd->mPTLen[CharC]);\r | |
| 643 | \r | |
| 644 | if (CharC <= 2) {\r | |
| 645 | \r | |
| 646 | if (CharC == 0) {\r | |
| 647 | CharC = 1;\r | |
| 648 | } else if (CharC == 1) {\r | |
| 649 | CharC = (UINT16) (GetBits (Sd, 4) + 3);\r | |
| 650 | } else if (CharC == 2) {\r | |
| 651 | CharC = (UINT16) (GetBits (Sd, CBIT) + 20);\r | |
| 652 | }\r | |
| 653 | \r | |
| 654 | while ((INT16) (--CharC) >= 0) {\r | |
| 655 | Sd->mCLen[Index++] = 0;\r | |
| 656 | }\r | |
| 657 | \r | |
| 658 | } else {\r | |
| 659 | \r | |
| 660 | Sd->mCLen[Index++] = (UINT8) (CharC - 2);\r | |
| 661 | \r | |
| 662 | }\r | |
| 663 | }\r | |
| 664 | \r | |
| 665 | while (Index < NC) {\r | |
| 666 | Sd->mCLen[Index++] = 0;\r | |
| 667 | }\r | |
| 668 | \r | |
| 669 | MakeTable (Sd, NC, Sd->mCLen, 12, Sd->mCTable);\r | |
| 670 | \r | |
| 671 | return ;\r | |
| 672 | }\r | |
| 673 | \r | |
| 674 | STATIC\r | |
| 675 | UINT16\r | |
| 676 | DecodeC (\r | |
| 677 | SCRATCH_DATA *Sd\r | |
| 678 | )\r | |
| 679 | /*++\r | |
| 680 | \r | |
| 681 | Routine Description:\r | |
| 682 | \r | |
| 683 | Decode a character/length value.\r | |
| 684 | \r | |
| 685 | Arguments:\r | |
| 686 | \r | |
| 687 | Sd - The global scratch data.\r | |
| 688 | \r | |
| 689 | Returns:\r | |
| 690 | \r | |
| 691 | The value decoded.\r | |
| 692 | \r | |
| 693 | --*/\r | |
| 694 | {\r | |
| 695 | UINT16 Index2;\r | |
| 696 | UINT32 Mask;\r | |
| 697 | \r | |
| 698 | if (Sd->mBlockSize == 0) {\r | |
| 699 | //\r | |
| 700 | // Starting a new block\r | |
| 701 | //\r | |
| 702 | Sd->mBlockSize = (UINT16) GetBits (Sd, 16);\r | |
| 703 | Sd->mBadTableFlag = ReadPTLen (Sd, NT, TBIT, 3);\r | |
| 704 | if (Sd->mBadTableFlag != 0) {\r | |
| 705 | return 0;\r | |
| 706 | }\r | |
| 707 | \r | |
| 708 | ReadCLen (Sd);\r | |
| 709 | \r | |
| 710 | Sd->mBadTableFlag = ReadPTLen (Sd, MAXNP, Sd->mPBit, (UINT16) (-1));\r | |
| 711 | if (Sd->mBadTableFlag != 0) {\r | |
| 712 | return 0;\r | |
| 713 | }\r | |
| 714 | }\r | |
| 715 | \r | |
| 716 | Sd->mBlockSize--;\r | |
| 717 | Index2 = Sd->mCTable[Sd->mBitBuf >> (BITBUFSIZ - 12)];\r | |
| 718 | \r | |
| 719 | if (Index2 >= NC) {\r | |
| 720 | Mask = 1U << (BITBUFSIZ - 1 - 12);\r | |
| 721 | \r | |
| 722 | do {\r | |
| 723 | if (Sd->mBitBuf & Mask) {\r | |
| 724 | Index2 = Sd->mRight[Index2];\r | |
| 725 | } else {\r | |
| 726 | Index2 = Sd->mLeft[Index2];\r | |
| 727 | }\r | |
| 728 | \r | |
| 729 | Mask >>= 1;\r | |
| 730 | } while (Index2 >= NC);\r | |
| 731 | }\r | |
| 732 | //\r | |
| 733 | // Advance what we have read\r | |
| 734 | //\r | |
| 735 | FillBuf (Sd, Sd->mCLen[Index2]);\r | |
| 736 | \r | |
| 737 | return Index2;\r | |
| 738 | }\r | |
| 739 | \r | |
| 740 | STATIC\r | |
| 741 | VOID\r | |
| 742 | Decode (\r | |
| 743 | SCRATCH_DATA *Sd\r | |
| 744 | )\r | |
| 745 | /*++\r | |
| 746 | \r | |
| 747 | Routine Description:\r | |
| 748 | \r | |
| 749 | Decode the source data and put the resulting data into the destination buffer.\r | |
| 750 | \r | |
| 751 | Arguments:\r | |
| 752 | \r | |
| 753 | Sd - The global scratch data\r | |
| 754 | \r | |
| 755 | Returns: (VOID)\r | |
| 756 | \r | |
| 757 | --*/\r | |
| 758 | {\r | |
| 759 | UINT16 BytesRemain;\r | |
| 760 | UINT32 DataIdx;\r | |
| 761 | UINT16 CharC;\r | |
| 762 | \r | |
| 763 | BytesRemain = (UINT16) (-1);\r | |
| 764 | \r | |
| 765 | DataIdx = 0;\r | |
| 766 | \r | |
| 767 | for (;;) {\r | |
| 768 | CharC = DecodeC (Sd);\r | |
| 769 | if (Sd->mBadTableFlag != 0) {\r | |
| 770 | return ;\r | |
| 771 | }\r | |
| 772 | \r | |
| 773 | if (CharC < 256) {\r | |
| 774 | //\r | |
| 775 | // Process an Original character\r | |
| 776 | //\r | |
| 777 | if (Sd->mOutBuf >= Sd->mOrigSize) {\r | |
| 778 | return ;\r | |
| 779 | } else {\r | |
| 780 | Sd->mDstBase[Sd->mOutBuf++] = (UINT8) CharC;\r | |
| 781 | }\r | |
| 782 | \r | |
| 783 | } else {\r | |
| 784 | //\r | |
| 785 | // Process a Pointer\r | |
| 786 | //\r | |
| 787 | CharC = (UINT16) (CharC - (UINT8_MAX + 1 - THRESHOLD));\r | |
| 788 | \r | |
| 789 | BytesRemain = CharC;\r | |
| 790 | \r | |
| 791 | DataIdx = Sd->mOutBuf - DecodeP (Sd) - 1;\r | |
| 792 | \r | |
| 793 | BytesRemain--;\r | |
| 794 | while ((INT16) (BytesRemain) >= 0) {\r | |
| 795 | Sd->mDstBase[Sd->mOutBuf++] = Sd->mDstBase[DataIdx++];\r | |
| 796 | if (Sd->mOutBuf >= Sd->mOrigSize) {\r | |
| 797 | return ;\r | |
| 798 | }\r | |
| 799 | \r | |
| 800 | BytesRemain--;\r | |
| 801 | }\r | |
| 802 | }\r | |
| 803 | }\r | |
| 3eb9473e | 804 | }\r |
| 805 | \r | |
| 806 | EFI_STATUS\r | |
| 807 | GetInfo (\r | |
| 808 | IN VOID *Source,\r | |
| 809 | IN UINT32 SrcSize,\r | |
| 810 | OUT UINT32 *DstSize,\r | |
| 811 | OUT UINT32 *ScratchSize\r | |
| 812 | )\r | |
| 813 | /*++\r | |
| 814 | \r | |
| 815 | Routine Description:\r | |
| 816 | \r | |
| 817 | The internal implementation of *_DECOMPRESS_PROTOCOL.GetInfo().\r | |
| 818 | \r | |
| 819 | Arguments:\r | |
| 820 | \r | |
| 821 | Source - The source buffer containing the compressed data.\r | |
| 822 | SrcSize - The size of source buffer\r | |
| 823 | DstSize - The size of destination buffer.\r | |
| 824 | ScratchSize - The size of scratch buffer.\r | |
| 825 | \r | |
| 826 | Returns:\r | |
| 827 | \r | |
| 4fc0be87 | 828 | EFI_SUCCESS - The size of destination buffer and the size of scratch buffer are successfully retrieved.\r |
| 3eb9473e | 829 | EFI_INVALID_PARAMETER - The source data is corrupted\r |
| 830 | \r | |
| 831 | --*/\r | |
| 832 | {\r | |
| 833 | UINT8 *Src;\r | |
| 834 | \r | |
| 835 | *ScratchSize = sizeof (SCRATCH_DATA);\r | |
| 836 | \r | |
| 837 | Src = Source;\r | |
| 838 | if (SrcSize < 8) {\r | |
| 839 | return EFI_INVALID_PARAMETER;\r | |
| 840 | }\r | |
| 841 | \r | |
| 842 | *DstSize = Src[4] + (Src[5] << 8) + (Src[6] << 16) + (Src[7] << 24);\r | |
| 843 | return EFI_SUCCESS;\r | |
| 844 | }\r | |
| 845 | \r | |
| 846 | EFI_STATUS\r | |
| 847 | Decompress (\r | |
| 848 | IN VOID *Source,\r | |
| 849 | IN UINT32 SrcSize,\r | |
| 850 | IN OUT VOID *Destination,\r | |
| 851 | IN UINT32 DstSize,\r | |
| 852 | IN OUT VOID *Scratch,\r | |
| 853 | IN UINT32 ScratchSize,\r | |
| 854 | IN UINT8 Version\r | |
| 855 | )\r | |
| 856 | /*++\r | |
| 857 | \r | |
| 858 | Routine Description:\r | |
| 859 | \r | |
| 860 | The internal implementation of *_DECOMPRESS_PROTOCOL.Decompress().\r | |
| 861 | \r | |
| 862 | Arguments:\r | |
| 863 | \r | |
| 864 | Source - The source buffer containing the compressed data.\r | |
| 865 | SrcSize - The size of source buffer\r | |
| 866 | Destination - The destination buffer to store the decompressed data\r | |
| 867 | DstSize - The size of destination buffer.\r | |
| 868 | Scratch - The buffer used internally by the decompress routine. This buffer is needed to store intermediate data.\r | |
| 869 | ScratchSize - The size of scratch buffer.\r | |
| 870 | Version - The version of de/compression algorithm.\r | |
| 871 | Version 1 for EFI 1.1 de/compression algorithm.\r | |
| 872 | Version 2 for Tiano de/compression algorithm.\r | |
| 873 | \r | |
| 874 | Returns:\r | |
| 875 | \r | |
| 876 | EFI_SUCCESS - Decompression is successfull\r | |
| 877 | EFI_INVALID_PARAMETER - The source data is corrupted\r | |
| 878 | \r | |
| 879 | --*/\r | |
| 880 | {\r | |
| 881 | UINT32 Index;\r | |
| 882 | UINT32 CompSize;\r | |
| 883 | UINT32 OrigSize;\r | |
| 884 | EFI_STATUS Status;\r | |
| 885 | SCRATCH_DATA *Sd;\r | |
| 886 | UINT8 *Src;\r | |
| 887 | UINT8 *Dst;\r | |
| 888 | \r | |
| 889 | Status = EFI_SUCCESS;\r | |
| 890 | Src = Source;\r | |
| 891 | Dst = Destination;\r | |
| 892 | \r | |
| 893 | if (ScratchSize < sizeof (SCRATCH_DATA)) {\r | |
| 894 | return EFI_INVALID_PARAMETER;\r | |
| 895 | }\r | |
| 896 | \r | |
| 897 | Sd = (SCRATCH_DATA *) Scratch;\r | |
| 898 | \r | |
| 899 | if (SrcSize < 8) {\r | |
| 900 | return EFI_INVALID_PARAMETER;\r | |
| 901 | }\r | |
| 902 | \r | |
| 903 | CompSize = Src[0] + (Src[1] << 8) + (Src[2] << 16) + (Src[3] << 24);\r | |
| 904 | OrigSize = Src[4] + (Src[5] << 8) + (Src[6] << 16) + (Src[7] << 24);\r | |
| 905 | \r | |
| 906 | //\r | |
| 907 | // If compressed file size is 0, return\r | |
| 908 | //\r | |
| 909 | if (OrigSize == 0) {\r | |
| 910 | return Status;\r | |
| 911 | }\r | |
| 912 | \r | |
| 913 | if (SrcSize < CompSize + 8) {\r | |
| 914 | return EFI_INVALID_PARAMETER;\r | |
| 915 | }\r | |
| 916 | \r | |
| 917 | if (DstSize != OrigSize) {\r | |
| 918 | return EFI_INVALID_PARAMETER;\r | |
| 919 | }\r | |
| 920 | \r | |
| 921 | Src = Src + 8;\r | |
| 922 | \r | |
| 923 | for (Index = 0; Index < sizeof (SCRATCH_DATA); Index++) {\r | |
| 924 | ((UINT8 *) Sd)[Index] = 0;\r | |
| 925 | }\r | |
| 926 | //\r | |
| 927 | // The length of the field 'Position Set Code Length Array Size' in Block Header.\r | |
| 928 | // For EFI 1.1 de/compression algorithm(Version 1), mPBit = 4\r | |
| 929 | // For Tiano de/compression algorithm(Version 2), mPBit = 5\r | |
| 930 | //\r | |
| 931 | switch (Version) {\r | |
| 932 | case 1:\r | |
| 933 | Sd->mPBit = 4;\r | |
| 934 | break;\r | |
| 935 | \r | |
| 936 | case 2:\r | |
| 937 | Sd->mPBit = 5;\r | |
| 938 | break;\r | |
| 939 | \r | |
| 940 | default:\r | |
| 941 | //\r | |
| 942 | // Currently, only have 2 versions\r | |
| 943 | //\r | |
| 944 | return EFI_INVALID_PARAMETER;\r | |
| 945 | }\r | |
| 946 | \r | |
| 947 | Sd->mSrcBase = Src;\r | |
| 948 | Sd->mDstBase = Dst;\r | |
| 949 | Sd->mCompSize = CompSize;\r | |
| 950 | Sd->mOrigSize = OrigSize;\r | |
| 951 | \r | |
| 952 | //\r | |
| 953 | // Fill the first BITBUFSIZ bits\r | |
| 954 | //\r | |
| 955 | FillBuf (Sd, BITBUFSIZ);\r | |
| 956 | \r | |
| 957 | //\r | |
| 958 | // Decompress it\r | |
| 959 | //\r | |
| 960 | Decode (Sd);\r | |
| 961 | \r | |
| 962 | if (Sd->mBadTableFlag != 0) {\r | |
| 963 | //\r | |
| 964 | // Something wrong with the source\r | |
| 965 | //\r | |
| 966 | Status = EFI_INVALID_PARAMETER;\r | |
| 967 | }\r | |
| 968 | \r | |
| 969 | return Status;\r | |
| 970 | }\r | |
| 971 | \r | |
| 972 | EFI_STATUS\r | |
| 973 | EFIAPI\r | |
| 974 | EfiGetInfo (\r | |
| 975 | IN EFI_DECOMPRESS_PROTOCOL *This,\r | |
| 976 | IN VOID *Source,\r | |
| 977 | IN UINT32 SrcSize,\r | |
| 978 | OUT UINT32 *DstSize,\r | |
| 979 | OUT UINT32 *ScratchSize\r | |
| 980 | )\r | |
| 981 | /*++\r | |
| 982 | \r | |
| 983 | Routine Description:\r | |
| 984 | \r | |
| 985 | The implementation of EFI_DECOMPRESS_PROTOCOL.GetInfo().\r | |
| 986 | \r | |
| 987 | Arguments:\r | |
| 988 | \r | |
| 989 | This - The protocol instance pointer\r | |
| 990 | Source - The source buffer containing the compressed data.\r | |
| 991 | SrcSize - The size of source buffer\r | |
| 992 | DstSize - The size of destination buffer.\r | |
| 993 | ScratchSize - The size of scratch buffer.\r | |
| 994 | \r | |
| 995 | Returns:\r | |
| 996 | \r | |
| 4fc0be87 | 997 | EFI_SUCCESS - The size of destination buffer and the size of scratch buffer are successfully retrieved.\r |
| 3eb9473e | 998 | EFI_INVALID_PARAMETER - The source data is corrupted\r |
| 999 | \r | |
| 1000 | --*/\r | |
| 1001 | {\r | |
| 1002 | return GetInfo (\r | |
| 1003 | Source,\r | |
| 1004 | SrcSize,\r | |
| 1005 | DstSize,\r | |
| 1006 | ScratchSize\r | |
| 1007 | );\r | |
| 1008 | }\r | |
| 1009 | \r | |
| 1010 | EFI_STATUS\r | |
| 1011 | EFIAPI\r | |
| 1012 | EfiDecompress (\r | |
| 1013 | IN EFI_DECOMPRESS_PROTOCOL *This,\r | |
| 1014 | IN VOID *Source,\r | |
| 1015 | IN UINT32 SrcSize,\r | |
| 1016 | IN OUT VOID *Destination,\r | |
| 1017 | IN UINT32 DstSize,\r | |
| 1018 | IN OUT VOID *Scratch,\r | |
| 1019 | IN UINT32 ScratchSize\r | |
| 1020 | )\r | |
| 1021 | /*++\r | |
| 1022 | \r | |
| 1023 | Routine Description:\r | |
| 1024 | \r | |
| 1025 | The implementation of EFI_DECOMPRESS_PROTOCOL.Decompress().\r | |
| 1026 | \r | |
| 1027 | Arguments:\r | |
| 1028 | \r | |
| 1029 | This - The protocol instance pointer\r | |
| 1030 | Source - The source buffer containing the compressed data.\r | |
| 1031 | SrcSize - The size of source buffer\r | |
| 1032 | Destination - The destination buffer to store the decompressed data\r | |
| 1033 | DstSize - The size of destination buffer.\r | |
| 1034 | Scratch - The buffer used internally by the decompress routine. This buffer is needed to store intermediate data.\r | |
| 1035 | ScratchSize - The size of scratch buffer.\r | |
| 1036 | \r | |
| 1037 | Returns:\r | |
| 1038 | \r | |
| 1039 | EFI_SUCCESS - Decompression is successfull\r | |
| 1040 | EFI_INVALID_PARAMETER - The source data is corrupted\r | |
| 1041 | \r | |
| 1042 | --*/\r | |
| 1043 | {\r | |
| 1044 | //\r | |
| 1045 | // For EFI 1.1 de/compression algorithm, the version is 1.\r | |
| 1046 | //\r | |
| 1047 | return Decompress (\r | |
| 1048 | Source,\r | |
| 1049 | SrcSize,\r | |
| 1050 | Destination,\r | |
| 1051 | DstSize,\r | |
| 1052 | Scratch,\r | |
| 1053 | ScratchSize,\r | |
| 1054 | 1\r | |
| 1055 | );\r | |
| 1056 | }\r | |
| 1057 | \r | |
| 1058 | EFI_STATUS\r | |
| 1059 | EFIAPI\r | |
| 1060 | TianoGetInfo (\r | |
| 1061 | IN EFI_TIANO_DECOMPRESS_PROTOCOL *This,\r | |
| 1062 | IN VOID *Source,\r | |
| 1063 | IN UINT32 SrcSize,\r | |
| 1064 | OUT UINT32 *DstSize,\r | |
| 1065 | OUT UINT32 *ScratchSize\r | |
| 1066 | )\r | |
| 1067 | /*++\r | |
| 1068 | \r | |
| 1069 | Routine Description:\r | |
| 1070 | \r | |
| 1071 | The implementation of EFI_TIANO_DECOMPRESS_PROTOCOL.GetInfo().\r | |
| 1072 | \r | |
| 1073 | Arguments:\r | |
| 1074 | \r | |
| 1075 | This - The protocol instance pointer\r | |
| 1076 | Source - The source buffer containing the compressed data.\r | |
| 1077 | SrcSize - The size of source buffer\r | |
| 1078 | DstSize - The size of destination buffer.\r | |
| 1079 | ScratchSize - The size of scratch buffer.\r | |
| 1080 | \r | |
| 1081 | Returns:\r | |
| 1082 | \r | |
| 4fc0be87 | 1083 | EFI_SUCCESS - The size of destination buffer and the size of scratch buffer are successfully retrieved.\r |
| 3eb9473e | 1084 | EFI_INVALID_PARAMETER - The source data is corrupted\r |
| 1085 | \r | |
| 1086 | --*/\r | |
| 1087 | {\r | |
| 1088 | return GetInfo (\r | |
| 1089 | Source,\r | |
| 1090 | SrcSize,\r | |
| 1091 | DstSize,\r | |
| 1092 | ScratchSize\r | |
| 1093 | );\r | |
| 1094 | }\r | |
| 1095 | \r | |
| 1096 | EFI_STATUS\r | |
| 1097 | EFIAPI\r | |
| 1098 | TianoDecompress (\r | |
| 1099 | IN EFI_TIANO_DECOMPRESS_PROTOCOL *This,\r | |
| 1100 | IN VOID *Source,\r | |
| 1101 | IN UINT32 SrcSize,\r | |
| 1102 | IN OUT VOID *Destination,\r | |
| 1103 | IN UINT32 DstSize,\r | |
| 1104 | IN OUT VOID *Scratch,\r | |
| 1105 | IN UINT32 ScratchSize\r | |
| 1106 | )\r | |
| 1107 | /*++\r | |
| 1108 | \r | |
| 1109 | Routine Description:\r | |
| 1110 | \r | |
| 1111 | The implementation of EFI_TIANO_DECOMPRESS_PROTOCOL.Decompress().\r | |
| 1112 | \r | |
| 1113 | Arguments:\r | |
| 1114 | \r | |
| 1115 | This - The protocol instance pointer\r | |
| 1116 | Source - The source buffer containing the compressed data.\r | |
| 1117 | SrcSize - The size of source buffer\r | |
| 1118 | Destination - The destination buffer to store the decompressed data\r | |
| 1119 | DstSize - The size of destination buffer.\r | |
| 1120 | Scratch - The buffer used internally by the decompress routine. This buffer is needed to store intermediate data.\r | |
| 1121 | ScratchSize - The size of scratch buffer.\r | |
| 1122 | \r | |
| 1123 | Returns:\r | |
| 1124 | \r | |
| 1125 | EFI_SUCCESS - Decompression is successfull\r | |
| 1126 | EFI_INVALID_PARAMETER - The source data is corrupted\r | |
| 1127 | \r | |
| 1128 | --*/\r | |
| 1129 | {\r | |
| 1130 | //\r | |
| 1131 | // For Tiano de/compression algorithm, the version is 2.\r | |
| 1132 | //\r | |
| 1133 | return Decompress (\r | |
| 1134 | Source,\r | |
| 1135 | SrcSize,\r | |
| 1136 | Destination,\r | |
| 1137 | DstSize,\r | |
| 1138 | Scratch,\r | |
| 1139 | ScratchSize,\r | |
| 1140 | 2\r | |
| 1141 | );\r | |
| 1142 | }\r |