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Side by Side Diff: core/src/fxcrt/extension.h

Issue 1513103002: Merge to XFA: Get rid of most uses of CFX_PtrArray. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@xfa
Patch Set: Created 5 years ago
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1 // Copyright 2014 PDFium Authors. All rights reserved. 1 // Copyright 2014 PDFium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6 6
7 #ifndef CORE_SRC_FXCRT_EXTENSION_H_ 7 #ifndef CORE_SRC_FXCRT_EXTENSION_H_
8 #define CORE_SRC_FXCRT_EXTENSION_H_ 8 #define CORE_SRC_FXCRT_EXTENSION_H_
9 9
10 #include "core/include/fxcrt/fx_basic.h" 10 #include "core/include/fxcrt/fx_basic.h"
(...skipping 115 matching lines...) Expand 10 before | Expand all | Expand 10 after
126 m_nCurSize(nSize), 126 m_nCurSize(nSize),
127 m_nCurPos(0), 127 m_nCurPos(0),
128 m_nGrowSize(FX_MEMSTREAM_BlockSize) { 128 m_nGrowSize(FX_MEMSTREAM_BlockSize) {
129 m_Blocks.Add(pBuffer); 129 m_Blocks.Add(pBuffer);
130 m_dwFlags = 130 m_dwFlags =
131 FX_MEMSTREAM_Consecutive | (bTakeOver ? FX_MEMSTREAM_TakeOver : 0); 131 FX_MEMSTREAM_Consecutive | (bTakeOver ? FX_MEMSTREAM_TakeOver : 0);
132 } 132 }
133 ~CFX_MemoryStream() override { 133 ~CFX_MemoryStream() override {
134 if (m_dwFlags & FX_MEMSTREAM_TakeOver) { 134 if (m_dwFlags & FX_MEMSTREAM_TakeOver) {
135 for (int32_t i = 0; i < m_Blocks.GetSize(); i++) { 135 for (int32_t i = 0; i < m_Blocks.GetSize(); i++) {
136 FX_Free((uint8_t*)m_Blocks[i]); 136 FX_Free(m_Blocks[i]);
137 } 137 }
138 } 138 }
139 m_Blocks.RemoveAll(); 139 m_Blocks.RemoveAll();
140 } 140 }
141 141
142 // IFX_MemoryStream: 142 // IFX_MemoryStream:
143 IFX_FileStream* Retain() override { 143 IFX_FileStream* Retain() override {
144 m_dwCount++; 144 m_dwCount++;
145 return this; 145 return this;
146 } 146 }
(...skipping 14 matching lines...) Expand all
161 161
162 FX_SAFE_SIZE_T newPos = size; 162 FX_SAFE_SIZE_T newPos = size;
163 newPos += offset; 163 newPos += offset;
164 if (!newPos.IsValid() || newPos.ValueOrDefault(0) == 0 || 164 if (!newPos.IsValid() || newPos.ValueOrDefault(0) == 0 ||
165 newPos.ValueOrDie() > m_nCurSize) { 165 newPos.ValueOrDie() > m_nCurSize) {
166 return FALSE; 166 return FALSE;
167 } 167 }
168 168
169 m_nCurPos = newPos.ValueOrDie(); 169 m_nCurPos = newPos.ValueOrDie();
170 if (m_dwFlags & FX_MEMSTREAM_Consecutive) { 170 if (m_dwFlags & FX_MEMSTREAM_Consecutive) {
171 FXSYS_memcpy(buffer, (uint8_t*)m_Blocks[0] + (size_t)offset, size); 171 FXSYS_memcpy(buffer, m_Blocks[0] + (size_t)offset, size);
172 return TRUE; 172 return TRUE;
173 } 173 }
174 size_t nStartBlock = (size_t)offset / m_nGrowSize; 174 size_t nStartBlock = (size_t)offset / m_nGrowSize;
175 offset -= (FX_FILESIZE)(nStartBlock * m_nGrowSize); 175 offset -= (FX_FILESIZE)(nStartBlock * m_nGrowSize);
176 while (size) { 176 while (size) {
177 size_t nRead = m_nGrowSize - (size_t)offset; 177 size_t nRead = m_nGrowSize - (size_t)offset;
178 if (nRead > size) { 178 if (nRead > size) {
179 nRead = size; 179 nRead = size;
180 } 180 }
181 FXSYS_memcpy( 181 FXSYS_memcpy(buffer, m_Blocks[(int)nStartBlock] + (size_t)offset, nRead);
182 buffer, (uint8_t*)m_Blocks[(int)nStartBlock] + (size_t)offset, nRead);
183 buffer = ((uint8_t*)buffer) + nRead; 182 buffer = ((uint8_t*)buffer) + nRead;
184 size -= nRead; 183 size -= nRead;
185 nStartBlock++; 184 nStartBlock++;
186 offset = 0; 185 offset = 0;
187 } 186 }
188 return TRUE; 187 return TRUE;
189 } 188 }
190 size_t ReadBlock(void* buffer, size_t size) override { 189 size_t ReadBlock(void* buffer, size_t size) override {
191 if (m_nCurPos >= m_nCurSize) { 190 if (m_nCurPos >= m_nCurSize) {
192 return 0; 191 return 0;
(...skipping 14 matching lines...) Expand all
207 FX_SAFE_SIZE_T newPos = size; 206 FX_SAFE_SIZE_T newPos = size;
208 newPos += offset; 207 newPos += offset;
209 if (!newPos.IsValid()) 208 if (!newPos.IsValid())
210 return FALSE; 209 return FALSE;
211 210
212 m_nCurPos = newPos.ValueOrDie(); 211 m_nCurPos = newPos.ValueOrDie();
213 if (m_nCurPos > m_nTotalSize) { 212 if (m_nCurPos > m_nTotalSize) {
214 m_nTotalSize = 213 m_nTotalSize =
215 (m_nCurPos + m_nGrowSize - 1) / m_nGrowSize * m_nGrowSize; 214 (m_nCurPos + m_nGrowSize - 1) / m_nGrowSize * m_nGrowSize;
216 if (m_Blocks.GetSize() < 1) { 215 if (m_Blocks.GetSize() < 1) {
217 void* block = FX_Alloc(uint8_t, m_nTotalSize); 216 uint8_t* block = FX_Alloc(uint8_t, m_nTotalSize);
218 m_Blocks.Add(block); 217 m_Blocks.Add(block);
219 } else { 218 } else {
220 m_Blocks[0] = FX_Realloc(uint8_t, m_Blocks[0], m_nTotalSize); 219 m_Blocks[0] = FX_Realloc(uint8_t, m_Blocks[0], m_nTotalSize);
221 } 220 }
222 if (!m_Blocks[0]) { 221 if (!m_Blocks[0]) {
223 m_Blocks.RemoveAll(); 222 m_Blocks.RemoveAll();
224 return FALSE; 223 return FALSE;
225 } 224 }
226 } 225 }
227 FXSYS_memcpy((uint8_t*)m_Blocks[0] + (size_t)offset, buffer, size); 226 FXSYS_memcpy(m_Blocks[0] + (size_t)offset, buffer, size);
228 if (m_nCurSize < m_nCurPos) { 227 if (m_nCurSize < m_nCurPos) {
229 m_nCurSize = m_nCurPos; 228 m_nCurSize = m_nCurPos;
230 } 229 }
231 return TRUE; 230 return TRUE;
232 } 231 }
233 232
234 FX_SAFE_SIZE_T newPos = size; 233 FX_SAFE_SIZE_T newPos = size;
235 newPos += offset; 234 newPos += offset;
236 if (!newPos.IsValid()) { 235 if (!newPos.IsValid()) {
237 return FALSE; 236 return FALSE;
238 } 237 }
239 238
240 if (!ExpandBlocks(newPos.ValueOrDie())) { 239 if (!ExpandBlocks(newPos.ValueOrDie())) {
241 return FALSE; 240 return FALSE;
242 } 241 }
243 m_nCurPos = newPos.ValueOrDie(); 242 m_nCurPos = newPos.ValueOrDie();
244 size_t nStartBlock = (size_t)offset / m_nGrowSize; 243 size_t nStartBlock = (size_t)offset / m_nGrowSize;
245 offset -= (FX_FILESIZE)(nStartBlock * m_nGrowSize); 244 offset -= (FX_FILESIZE)(nStartBlock * m_nGrowSize);
246 while (size) { 245 while (size) {
247 size_t nWrite = m_nGrowSize - (size_t)offset; 246 size_t nWrite = m_nGrowSize - (size_t)offset;
248 if (nWrite > size) { 247 if (nWrite > size) {
249 nWrite = size; 248 nWrite = size;
250 } 249 }
251 FXSYS_memcpy((uint8_t*)m_Blocks[(int)nStartBlock] + (size_t)offset, 250 FXSYS_memcpy(m_Blocks[(int)nStartBlock] + (size_t)offset, buffer, nWrite);
252 buffer, nWrite);
253 buffer = ((uint8_t*)buffer) + nWrite; 251 buffer = ((uint8_t*)buffer) + nWrite;
254 size -= nWrite; 252 size -= nWrite;
255 nStartBlock++; 253 nStartBlock++;
256 offset = 0; 254 offset = 0;
257 } 255 }
258 return TRUE; 256 return TRUE;
259 } 257 }
260 FX_BOOL Flush() override { return TRUE; } 258 FX_BOOL Flush() override { return TRUE; }
261 FX_BOOL IsConsecutive() const override { 259 FX_BOOL IsConsecutive() const override {
262 return m_dwFlags & FX_MEMSTREAM_Consecutive; 260 return m_dwFlags & FX_MEMSTREAM_Consecutive;
263 } 261 }
264 void EstimateSize(size_t nInitSize, size_t nGrowSize) override { 262 void EstimateSize(size_t nInitSize, size_t nGrowSize) override {
265 if (m_dwFlags & FX_MEMSTREAM_Consecutive) { 263 if (m_dwFlags & FX_MEMSTREAM_Consecutive) {
266 if (m_Blocks.GetSize() < 1) { 264 if (m_Blocks.GetSize() < 1) {
267 uint8_t* pBlock = FX_Alloc(uint8_t, FX_MAX(nInitSize, 4096)); 265 uint8_t* pBlock = FX_Alloc(uint8_t, FX_MAX(nInitSize, 4096));
268 m_Blocks.Add(pBlock); 266 m_Blocks.Add(pBlock);
269 } 267 }
270 m_nGrowSize = FX_MAX(nGrowSize, 4096); 268 m_nGrowSize = FX_MAX(nGrowSize, 4096);
271 } else if (m_Blocks.GetSize() < 1) { 269 } else if (m_Blocks.GetSize() < 1) {
272 m_nGrowSize = FX_MAX(nGrowSize, 4096); 270 m_nGrowSize = FX_MAX(nGrowSize, 4096);
273 } 271 }
274 } 272 }
275 uint8_t* GetBuffer() const override { 273 uint8_t* GetBuffer() const override {
276 return m_Blocks.GetSize() ? (uint8_t*)m_Blocks[0] : NULL; 274 return m_Blocks.GetSize() ? m_Blocks[0] : nullptr;
277 } 275 }
278 void AttachBuffer(uint8_t* pBuffer, 276 void AttachBuffer(uint8_t* pBuffer,
279 size_t nSize, 277 size_t nSize,
280 FX_BOOL bTakeOver = FALSE) override { 278 FX_BOOL bTakeOver = FALSE) override {
281 if (!(m_dwFlags & FX_MEMSTREAM_Consecutive)) { 279 if (!(m_dwFlags & FX_MEMSTREAM_Consecutive)) {
282 return; 280 return;
283 } 281 }
284 m_Blocks.RemoveAll(); 282 m_Blocks.RemoveAll();
285 m_Blocks.Add(pBuffer); 283 m_Blocks.Add(pBuffer);
286 m_nTotalSize = m_nCurSize = nSize; 284 m_nTotalSize = m_nCurSize = nSize;
287 m_nCurPos = 0; 285 m_nCurPos = 0;
288 m_dwFlags = 286 m_dwFlags =
289 FX_MEMSTREAM_Consecutive | (bTakeOver ? FX_MEMSTREAM_TakeOver : 0); 287 FX_MEMSTREAM_Consecutive | (bTakeOver ? FX_MEMSTREAM_TakeOver : 0);
290 } 288 }
291 void DetachBuffer() override { 289 void DetachBuffer() override {
292 if (!(m_dwFlags & FX_MEMSTREAM_Consecutive)) { 290 if (!(m_dwFlags & FX_MEMSTREAM_Consecutive)) {
293 return; 291 return;
294 } 292 }
295 m_Blocks.RemoveAll(); 293 m_Blocks.RemoveAll();
296 m_nTotalSize = m_nCurSize = m_nCurPos = 0; 294 m_nTotalSize = m_nCurSize = m_nCurPos = 0;
297 m_dwFlags = FX_MEMSTREAM_TakeOver; 295 m_dwFlags = FX_MEMSTREAM_TakeOver;
298 } 296 }
299 297
300 protected: 298 protected:
301 CFX_PtrArray m_Blocks; 299 CFX_ArrayTemplate<uint8_t*> m_Blocks;
302 FX_DWORD m_dwCount; 300 FX_DWORD m_dwCount;
303 size_t m_nTotalSize; 301 size_t m_nTotalSize;
304 size_t m_nCurSize; 302 size_t m_nCurSize;
305 size_t m_nCurPos; 303 size_t m_nCurPos;
306 size_t m_nGrowSize; 304 size_t m_nGrowSize;
307 FX_DWORD m_dwFlags; 305 FX_DWORD m_dwFlags;
308 FX_BOOL ExpandBlocks(size_t size) { 306 FX_BOOL ExpandBlocks(size_t size) {
309 if (m_nCurSize < size) { 307 if (m_nCurSize < size) {
310 m_nCurSize = size; 308 m_nCurSize = size;
311 } 309 }
(...skipping 31 matching lines...) Expand 10 before | Expand all | Expand 10 after
343 } FX_MTRANDOMCONTEXT, *FX_LPMTRANDOMCONTEXT; 341 } FX_MTRANDOMCONTEXT, *FX_LPMTRANDOMCONTEXT;
344 typedef FX_MTRANDOMCONTEXT const* FX_LPCMTRANDOMCONTEXT; 342 typedef FX_MTRANDOMCONTEXT const* FX_LPCMTRANDOMCONTEXT;
345 #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ 343 #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
346 FX_BOOL FX_GenerateCryptoRandom(FX_DWORD* pBuffer, int32_t iCount); 344 FX_BOOL FX_GenerateCryptoRandom(FX_DWORD* pBuffer, int32_t iCount);
347 #endif 345 #endif
348 #ifdef __cplusplus 346 #ifdef __cplusplus
349 } 347 }
350 #endif 348 #endif
351 349
352 #endif // CORE_SRC_FXCRT_EXTENSION_H_ 350 #endif // CORE_SRC_FXCRT_EXTENSION_H_
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