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| 1 // Copyright 2014 PDFium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | |
| 6 | |
| 7 #include "xfa/src/fgas/crt/fgas_utils.h" | |
| 8 | |
| 9 #include <algorithm> | |
| 10 | |
| 11 #include "core/include/fxcrt/fx_basic.h" | |
| 12 | |
| 13 class FX_BASEARRAYDATA : public CFX_Target { | |
| 14 public: | |
| 15 FX_BASEARRAYDATA(int32_t growsize, int32_t blocksize) | |
| 16 : iGrowSize(growsize), | |
| 17 iBlockSize(blocksize), | |
| 18 iTotalCount(0), | |
| 19 iBlockCount(0), | |
| 20 pBuffer(nullptr) {} | |
| 21 | |
| 22 ~FX_BASEARRAYDATA() { FX_Free(pBuffer); } | |
| 23 | |
| 24 int32_t iGrowSize; | |
| 25 int32_t iBlockSize; | |
| 26 int32_t iTotalCount; | |
| 27 int32_t iBlockCount; | |
| 28 uint8_t* pBuffer; | |
| 29 }; | |
| 30 CFX_BaseArray::CFX_BaseArray(int32_t iGrowSize, int32_t iBlockSize) { | |
| 31 FXSYS_assert(iGrowSize > 0 && iBlockSize > 0); | |
| 32 m_pData = new FX_BASEARRAYDATA(iGrowSize, iBlockSize); | |
| 33 } | |
| 34 CFX_BaseArray::~CFX_BaseArray() { | |
| 35 RemoveAll(); | |
| 36 delete m_pData; | |
| 37 } | |
| 38 int32_t CFX_BaseArray::GetSize() const { | |
| 39 return m_pData->iBlockCount; | |
| 40 } | |
| 41 int32_t CFX_BaseArray::GetBlockSize() const { | |
| 42 return m_pData->iBlockSize; | |
| 43 } | |
| 44 uint8_t* CFX_BaseArray::AddSpaceTo(int32_t index) { | |
| 45 FXSYS_assert(index > -1); | |
| 46 uint8_t*& pBuffer = m_pData->pBuffer; | |
| 47 int32_t& iTotalCount = m_pData->iTotalCount; | |
| 48 int32_t iBlockSize = m_pData->iBlockSize; | |
| 49 if (index >= iTotalCount) { | |
| 50 int32_t iGrowSize = m_pData->iGrowSize; | |
| 51 iTotalCount = (index / iGrowSize + 1) * iGrowSize; | |
| 52 int32_t iNewSize = iTotalCount * iBlockSize; | |
| 53 if (!pBuffer) { | |
| 54 pBuffer = FX_Alloc(uint8_t, iNewSize); | |
| 55 } else { | |
| 56 pBuffer = FX_Realloc(uint8_t, pBuffer, iNewSize); | |
| 57 } | |
| 58 } | |
| 59 int32_t& iBlockCount = m_pData->iBlockCount; | |
| 60 if (index >= iBlockCount) { | |
| 61 iBlockCount = index + 1; | |
| 62 } | |
| 63 return pBuffer + index * iBlockSize; | |
| 64 } | |
| 65 uint8_t* CFX_BaseArray::GetAt(int32_t index) const { | |
| 66 FXSYS_assert(index > -1 && index < m_pData->iBlockCount); | |
| 67 return m_pData->pBuffer + index * m_pData->iBlockSize; | |
| 68 } | |
| 69 uint8_t* CFX_BaseArray::GetBuffer() const { | |
| 70 return m_pData->pBuffer; | |
| 71 } | |
| 72 int32_t CFX_BaseArray::Append(const CFX_BaseArray& src, | |
| 73 int32_t iStart, | |
| 74 int32_t iCount) { | |
| 75 int32_t iBlockSize = m_pData->iBlockSize; | |
| 76 FXSYS_assert(iBlockSize == src.m_pData->iBlockSize); | |
| 77 int32_t& iBlockCount = m_pData->iBlockCount; | |
| 78 int32_t iAdded = src.GetSize(); | |
| 79 FXSYS_assert(iStart > -1 && iStart < iAdded); | |
| 80 if (iCount < 0) { | |
| 81 iCount = iAdded; | |
| 82 } | |
| 83 if (iStart + iCount > iAdded) { | |
| 84 iCount = iAdded - iStart; | |
| 85 } | |
| 86 if (iCount < 1) { | |
| 87 return 0; | |
| 88 } | |
| 89 uint8_t* pDst = m_pData->pBuffer + iBlockCount * iBlockSize; | |
| 90 AddSpaceTo(iBlockCount + iCount - 1); | |
| 91 FXSYS_memcpy(pDst, src.m_pData->pBuffer + iStart * iBlockSize, | |
| 92 iCount * iBlockSize); | |
| 93 return iCount; | |
| 94 } | |
| 95 int32_t CFX_BaseArray::Copy(const CFX_BaseArray& src, | |
| 96 int32_t iStart, | |
| 97 int32_t iCount) { | |
| 98 int32_t iBlockSize = m_pData->iBlockSize; | |
| 99 FXSYS_assert(iBlockSize == src.m_pData->iBlockSize); | |
| 100 int32_t iCopied = src.GetSize(); | |
| 101 FXSYS_assert(iStart > -1 && iStart < iCopied); | |
| 102 if (iCount < 0) { | |
| 103 iCount = iCopied; | |
| 104 } | |
| 105 if (iStart + iCount > iCopied) { | |
| 106 iCount = iCopied - iStart; | |
| 107 } | |
| 108 if (iCount < 1) { | |
| 109 return 0; | |
| 110 } | |
| 111 RemoveAll(TRUE); | |
| 112 AddSpaceTo(iCount - 1); | |
| 113 FXSYS_memcpy(m_pData->pBuffer, src.m_pData->pBuffer + iStart * iBlockSize, | |
| 114 iCount * iBlockSize); | |
| 115 return iCount; | |
| 116 } | |
| 117 int32_t CFX_BaseArray::RemoveLast(int32_t iCount) { | |
| 118 int32_t& iBlockCount = m_pData->iBlockCount; | |
| 119 if (iCount < 0 || iCount > iBlockCount) { | |
| 120 iCount = iBlockCount; | |
| 121 iBlockCount = 0; | |
| 122 } else { | |
| 123 iBlockCount -= iCount; | |
| 124 } | |
| 125 return iCount; | |
| 126 } | |
| 127 void CFX_BaseArray::RemoveAll(FX_BOOL bLeaveMemory) { | |
| 128 if (!bLeaveMemory) { | |
| 129 uint8_t*& pBuffer = m_pData->pBuffer; | |
| 130 if (pBuffer != NULL) { | |
| 131 FX_Free(pBuffer); | |
| 132 pBuffer = NULL; | |
| 133 } | |
| 134 m_pData->iTotalCount = 0; | |
| 135 } | |
| 136 m_pData->iBlockCount = 0; | |
| 137 } | |
| 138 | |
| 139 CFX_BaseMassArrayImp::CFX_BaseMassArrayImp(int32_t iChunkSize, | |
| 140 int32_t iBlockSize) | |
| 141 : m_iChunkSize(iChunkSize), | |
| 142 m_iBlockSize(iBlockSize), | |
| 143 m_iChunkCount(0), | |
| 144 m_iBlockCount(0) { | |
| 145 FXSYS_assert(m_iChunkSize > 0 && m_iBlockSize > 0); | |
| 146 m_pData = new CFX_PtrArray; | |
| 147 m_pData->SetSize(16); | |
| 148 } | |
| 149 CFX_BaseMassArrayImp::~CFX_BaseMassArrayImp() { | |
| 150 RemoveAll(); | |
| 151 delete m_pData; | |
| 152 } | |
| 153 uint8_t* CFX_BaseMassArrayImp::AddSpaceTo(int32_t index) { | |
| 154 FXSYS_assert(index > -1); | |
| 155 uint8_t* pChunk; | |
| 156 if (index < m_iBlockCount) { | |
| 157 pChunk = (uint8_t*)m_pData->GetAt(index / m_iChunkSize); | |
| 158 } else { | |
| 159 int32_t iMemSize = m_iChunkSize * m_iBlockSize; | |
| 160 while (TRUE) { | |
| 161 if (index < m_iChunkCount * m_iChunkSize) { | |
| 162 pChunk = (uint8_t*)m_pData->GetAt(index / m_iChunkSize); | |
| 163 break; | |
| 164 } else { | |
| 165 pChunk = FX_Alloc(uint8_t, iMemSize); | |
| 166 if (m_iChunkCount < m_pData->GetSize()) { | |
| 167 m_pData->SetAt(m_iChunkCount, pChunk); | |
| 168 } else { | |
| 169 m_pData->Add(pChunk); | |
| 170 } | |
| 171 m_iChunkCount++; | |
| 172 } | |
| 173 } | |
| 174 } | |
| 175 FXSYS_assert(pChunk != NULL); | |
| 176 m_iBlockCount = index + 1; | |
| 177 return pChunk + (index % m_iChunkSize) * m_iBlockSize; | |
| 178 } | |
| 179 uint8_t* CFX_BaseMassArrayImp::GetAt(int32_t index) const { | |
| 180 FXSYS_assert(index > -1 && index < m_iBlockCount); | |
| 181 uint8_t* pChunk = (uint8_t*)m_pData->GetAt(index / m_iChunkSize); | |
| 182 FXSYS_assert(pChunk != NULL); | |
| 183 return pChunk + (index % m_iChunkSize) * m_iBlockSize; | |
| 184 } | |
| 185 int32_t CFX_BaseMassArrayImp::Append(const CFX_BaseMassArrayImp& src, | |
| 186 int32_t iStart, | |
| 187 int32_t iCount) { | |
| 188 FXSYS_assert(m_iBlockSize == src.m_iBlockSize); | |
| 189 int32_t iAdded = src.m_iBlockCount; | |
| 190 FXSYS_assert(iStart > -1 && iStart < iAdded); | |
| 191 if (iCount < 0) { | |
| 192 iCount = iAdded; | |
| 193 } | |
| 194 if (iStart + iCount > iAdded) { | |
| 195 iCount = iAdded - iStart; | |
| 196 } | |
| 197 if (iCount < 1) { | |
| 198 return m_iBlockCount; | |
| 199 } | |
| 200 int32_t iBlockCount = m_iBlockCount; | |
| 201 int32_t iTotal = m_iBlockCount + iCount; | |
| 202 AddSpaceTo(iTotal - 1); | |
| 203 Append(iBlockCount, src, iStart, iCount); | |
| 204 return m_iBlockCount; | |
| 205 } | |
| 206 int32_t CFX_BaseMassArrayImp::Copy(const CFX_BaseMassArrayImp& src, | |
| 207 int32_t iStart, | |
| 208 int32_t iCount) { | |
| 209 FXSYS_assert(m_iBlockSize == src.m_iBlockSize); | |
| 210 int32_t iCopied = src.m_iBlockCount; | |
| 211 FXSYS_assert(iStart > -1); | |
| 212 if (iStart >= iCopied) { | |
| 213 return 0; | |
| 214 } | |
| 215 RemoveAll(TRUE); | |
| 216 if (iCount < 0) { | |
| 217 iCount = iCopied; | |
| 218 } | |
| 219 if (iStart + iCount > iCopied) { | |
| 220 iCount = iCopied - iStart; | |
| 221 } | |
| 222 if (iCount < 1) { | |
| 223 return 0; | |
| 224 } | |
| 225 if (m_iBlockCount < iCount) { | |
| 226 AddSpaceTo(iCount - 1); | |
| 227 } | |
| 228 Append(0, src, iStart, iCount); | |
| 229 return m_iBlockCount; | |
| 230 } | |
| 231 | |
| 232 void CFX_BaseMassArrayImp::Append(int32_t iDstStart, | |
| 233 const CFX_BaseMassArrayImp& src, | |
| 234 int32_t iSrcStart, | |
| 235 int32_t iSrcCount) { | |
| 236 FXSYS_assert(iDstStart > -1); | |
| 237 FXSYS_assert(m_iBlockSize == src.m_iBlockSize); | |
| 238 FXSYS_assert(src.m_iBlockCount > 0); | |
| 239 FXSYS_assert(m_iBlockCount >= iDstStart + iSrcCount); | |
| 240 FXSYS_assert(iSrcStart > -1); | |
| 241 FXSYS_assert(iSrcStart < src.m_iBlockCount); | |
| 242 FXSYS_assert(iSrcCount > 0); | |
| 243 FXSYS_assert(iSrcStart + iSrcCount <= src.m_iBlockCount); | |
| 244 | |
| 245 int32_t iDstChunkIndex = iDstStart / m_iChunkSize; | |
| 246 int32_t iSrcChunkIndex = iSrcStart / src.m_iChunkSize; | |
| 247 uint8_t* pDstChunk = (uint8_t*)GetAt(iDstStart); | |
| 248 uint8_t* pSrcChunk = (uint8_t*)src.GetAt(iSrcStart); | |
| 249 int32_t iDstChunkSize = m_iChunkSize - (iDstStart % m_iChunkSize); | |
| 250 int32_t iSrcChunkSize = src.m_iChunkSize - (iSrcStart % src.m_iChunkSize); | |
| 251 int32_t iCopySize = | |
| 252 std::min(iSrcCount, std::min(iSrcChunkSize, iDstChunkSize)); | |
| 253 int32_t iCopyBytes = iCopySize * m_iBlockSize; | |
| 254 while (iSrcCount > 0) { | |
| 255 FXSYS_assert(pDstChunk != NULL && pSrcChunk != NULL); | |
| 256 FXSYS_memcpy(pDstChunk, pSrcChunk, iCopyBytes); | |
| 257 iSrcCount -= iCopySize; | |
| 258 iSrcChunkSize -= iCopySize; | |
| 259 if (iSrcChunkSize < 1) { | |
| 260 iSrcChunkSize = src.m_iChunkSize; | |
| 261 iSrcChunkIndex++; | |
| 262 pSrcChunk = (uint8_t*)src.m_pData->GetAt(iSrcChunkIndex); | |
| 263 } else { | |
| 264 pSrcChunk += iCopyBytes; | |
| 265 } | |
| 266 iDstChunkSize -= iCopySize; | |
| 267 if (iDstChunkSize < 1) { | |
| 268 iDstChunkSize = m_iChunkSize; | |
| 269 iDstChunkIndex++; | |
| 270 pDstChunk = (uint8_t*)m_pData->GetAt(iDstChunkIndex); | |
| 271 } else { | |
| 272 pDstChunk += iCopyBytes; | |
| 273 } | |
| 274 iCopySize = std::min(iSrcCount, std::min(iSrcChunkSize, iDstChunkSize)); | |
| 275 iCopyBytes = iCopySize * m_iBlockSize; | |
| 276 } | |
| 277 } | |
| 278 int32_t CFX_BaseMassArrayImp::RemoveLast(int32_t iCount) { | |
| 279 if (iCount < 0 || iCount >= m_iBlockCount) { | |
| 280 m_iBlockCount = 0; | |
| 281 } else { | |
| 282 m_iBlockCount -= iCount; | |
| 283 } | |
| 284 return m_iBlockCount; | |
| 285 } | |
| 286 void CFX_BaseMassArrayImp::RemoveAll(FX_BOOL bLeaveMemory) { | |
| 287 if (bLeaveMemory) { | |
| 288 m_iBlockCount = 0; | |
| 289 return; | |
| 290 } | |
| 291 for (int32_t i = 0; i < m_iChunkCount; i++) { | |
| 292 void* p = m_pData->GetAt(i); | |
| 293 if (p == NULL) { | |
| 294 continue; | |
| 295 } | |
| 296 FX_Free(p); | |
| 297 } | |
| 298 m_pData->RemoveAll(); | |
| 299 m_iChunkCount = 0; | |
| 300 m_iBlockCount = 0; | |
| 301 } | |
| 302 CFX_BaseMassArray::CFX_BaseMassArray(int32_t iChunkSize, int32_t iBlockSize) { | |
| 303 m_pData = new CFX_BaseMassArrayImp(iChunkSize, iBlockSize); | |
| 304 } | |
| 305 CFX_BaseMassArray::~CFX_BaseMassArray() { | |
| 306 delete m_pData; | |
| 307 } | |
| 308 int32_t CFX_BaseMassArray::GetSize() const { | |
| 309 return m_pData->m_iBlockCount; | |
| 310 } | |
| 311 uint8_t* CFX_BaseMassArray::AddSpaceTo(int32_t index) { | |
| 312 return m_pData->AddSpaceTo(index); | |
| 313 } | |
| 314 uint8_t* CFX_BaseMassArray::GetAt(int32_t index) const { | |
| 315 return m_pData->GetAt(index); | |
| 316 } | |
| 317 int32_t CFX_BaseMassArray::Append(const CFX_BaseMassArray& src, | |
| 318 int32_t iStart, | |
| 319 int32_t iCount) { | |
| 320 return m_pData->Append(*(CFX_BaseMassArrayImp*)src.m_pData, iStart, iCount); | |
| 321 } | |
| 322 int32_t CFX_BaseMassArray::Copy(const CFX_BaseMassArray& src, | |
| 323 int32_t iStart, | |
| 324 int32_t iCount) { | |
| 325 return m_pData->Copy(*(CFX_BaseMassArrayImp*)src.m_pData, iStart, iCount); | |
| 326 } | |
| 327 int32_t CFX_BaseMassArray::RemoveLast(int32_t iCount) { | |
| 328 return m_pData->RemoveLast(iCount); | |
| 329 } | |
| 330 void CFX_BaseMassArray::RemoveAll(FX_BOOL bLeaveMemory) { | |
| 331 m_pData->RemoveAll(bLeaveMemory); | |
| 332 } | |
| 333 | |
| 334 struct FX_BASEDISCRETEARRAYDATA { | |
| 335 int32_t iBlockSize; | |
| 336 int32_t iChunkSize; | |
| 337 int32_t iChunkCount; | |
| 338 CFX_PtrArray ChunkBuffer; | |
| 339 }; | |
| 340 | |
| 341 CFX_BaseDiscreteArray::CFX_BaseDiscreteArray(int32_t iChunkSize, | |
| 342 int32_t iBlockSize) { | |
| 343 FXSYS_assert(iChunkSize > 0 && iBlockSize > 0); | |
| 344 FX_BASEDISCRETEARRAYDATA* pData = new FX_BASEDISCRETEARRAYDATA; | |
| 345 m_pData = pData; | |
| 346 pData->ChunkBuffer.SetSize(16); | |
| 347 pData->iChunkCount = 0; | |
| 348 pData->iChunkSize = iChunkSize; | |
| 349 pData->iBlockSize = iBlockSize; | |
| 350 } | |
| 351 CFX_BaseDiscreteArray::~CFX_BaseDiscreteArray() { | |
| 352 RemoveAll(); | |
| 353 delete static_cast<FX_BASEDISCRETEARRAYDATA*>(m_pData); | |
| 354 } | |
| 355 uint8_t* CFX_BaseDiscreteArray::AddSpaceTo(int32_t index) { | |
| 356 FXSYS_assert(index > -1); | |
| 357 FX_BASEDISCRETEARRAYDATA* pData = (FX_BASEDISCRETEARRAYDATA*)m_pData; | |
| 358 int32_t& iChunkCount = pData->iChunkCount; | |
| 359 int32_t iChunkSize = pData->iChunkSize; | |
| 360 uint8_t* pChunk = NULL; | |
| 361 int32_t iChunk = index / iChunkSize; | |
| 362 if (iChunk < iChunkCount) { | |
| 363 pChunk = (uint8_t*)pData->ChunkBuffer.GetAt(iChunk); | |
| 364 } | |
| 365 if (!pChunk) { | |
| 366 pChunk = FX_Alloc2D(uint8_t, iChunkSize, pData->iBlockSize); | |
| 367 FXSYS_memset(pChunk, 0, iChunkSize * pData->iBlockSize); | |
| 368 pData->ChunkBuffer.SetAtGrow(iChunk, pChunk); | |
| 369 if (iChunkCount <= iChunk) { | |
| 370 iChunkCount = iChunk + 1; | |
| 371 } | |
| 372 } | |
| 373 return pChunk + (index % iChunkSize) * pData->iBlockSize; | |
| 374 } | |
| 375 uint8_t* CFX_BaseDiscreteArray::GetAt(int32_t index) const { | |
| 376 FXSYS_assert(index > -1); | |
| 377 FX_BASEDISCRETEARRAYDATA* pData = (FX_BASEDISCRETEARRAYDATA*)m_pData; | |
| 378 int32_t iChunkSize = pData->iChunkSize; | |
| 379 int32_t iChunk = index / iChunkSize; | |
| 380 if (iChunk >= pData->iChunkCount) { | |
| 381 return NULL; | |
| 382 } | |
| 383 uint8_t* pChunk = (uint8_t*)pData->ChunkBuffer.GetAt(iChunk); | |
| 384 if (pChunk == NULL) { | |
| 385 return NULL; | |
| 386 } | |
| 387 return pChunk + (index % iChunkSize) * pData->iBlockSize; | |
| 388 } | |
| 389 void CFX_BaseDiscreteArray::RemoveAll() { | |
| 390 FX_BASEDISCRETEARRAYDATA* pData = (FX_BASEDISCRETEARRAYDATA*)m_pData; | |
| 391 CFX_PtrArray& ChunkBuffer = pData->ChunkBuffer; | |
| 392 int32_t& iChunkCount = pData->iChunkCount; | |
| 393 for (int32_t i = 0; i < iChunkCount; i++) { | |
| 394 void* p = ChunkBuffer.GetAt(i); | |
| 395 if (p == NULL) { | |
| 396 continue; | |
| 397 } | |
| 398 FX_Free(p); | |
| 399 } | |
| 400 ChunkBuffer.RemoveAll(); | |
| 401 iChunkCount = 0; | |
| 402 } | |
| 403 CFX_BaseStack::CFX_BaseStack(int32_t iChunkSize, int32_t iBlockSize) { | |
| 404 m_pData = new CFX_BaseMassArrayImp(iChunkSize, iBlockSize); | |
| 405 } | |
| 406 CFX_BaseStack::~CFX_BaseStack() { | |
| 407 delete (CFX_BaseMassArrayImp*)m_pData; | |
| 408 } | |
| 409 uint8_t* CFX_BaseStack::Push() { | |
| 410 return m_pData->AddSpace(); | |
| 411 } | |
| 412 void CFX_BaseStack::Pop() { | |
| 413 int32_t& iBlockCount = m_pData->m_iBlockCount; | |
| 414 if (iBlockCount < 1) { | |
| 415 return; | |
| 416 } | |
| 417 iBlockCount--; | |
| 418 } | |
| 419 uint8_t* CFX_BaseStack::GetTopElement() const { | |
| 420 int32_t iSize = m_pData->m_iBlockCount; | |
| 421 if (iSize < 1) { | |
| 422 return NULL; | |
| 423 } | |
| 424 return m_pData->GetAt(iSize - 1); | |
| 425 } | |
| 426 int32_t CFX_BaseStack::GetSize() const { | |
| 427 return m_pData->m_iBlockCount; | |
| 428 } | |
| 429 uint8_t* CFX_BaseStack::GetAt(int32_t index) const { | |
| 430 return m_pData->GetAt(index); | |
| 431 } | |
| 432 void CFX_BaseStack::RemoveAll(FX_BOOL bLeaveMemory) { | |
| 433 m_pData->RemoveAll(bLeaveMemory); | |
| 434 } | |
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Chromium Code Reviews
Issue 1803723002:
Move xfa/src up to xfa/. (Closed)
Base URL: https://pdfium.googlesource.com/pdfium.git@master