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

Issue 1518593002: Get rid of most uses of CFX_PtrArray. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master
Patch Set: Fix botch. 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 81 matching lines...) Expand 10 before | Expand all | Expand 10 after
92 m_nCurSize(nSize), 92 m_nCurSize(nSize),
93 m_nCurPos(0), 93 m_nCurPos(0),
94 m_nGrowSize(FX_MEMSTREAM_BlockSize) { 94 m_nGrowSize(FX_MEMSTREAM_BlockSize) {
95 m_Blocks.Add(pBuffer); 95 m_Blocks.Add(pBuffer);
96 m_dwFlags = 96 m_dwFlags =
97 FX_MEMSTREAM_Consecutive | (bTakeOver ? FX_MEMSTREAM_TakeOver : 0); 97 FX_MEMSTREAM_Consecutive | (bTakeOver ? FX_MEMSTREAM_TakeOver : 0);
98 } 98 }
99 ~CFX_MemoryStream() override { 99 ~CFX_MemoryStream() override {
100 if (m_dwFlags & FX_MEMSTREAM_TakeOver) { 100 if (m_dwFlags & FX_MEMSTREAM_TakeOver) {
101 for (int32_t i = 0; i < m_Blocks.GetSize(); i++) { 101 for (int32_t i = 0; i < m_Blocks.GetSize(); i++) {
102 FX_Free((uint8_t*)m_Blocks[i]); 102 FX_Free(m_Blocks[i]);
103 } 103 }
104 } 104 }
105 m_Blocks.RemoveAll(); 105 m_Blocks.RemoveAll();
106 } 106 }
107 107
108 // IFX_MemoryStream: 108 // IFX_MemoryStream:
109 IFX_FileStream* Retain() override { 109 IFX_FileStream* Retain() override {
110 m_dwCount++; 110 m_dwCount++;
111 return this; 111 return this;
112 } 112 }
(...skipping 14 matching lines...) Expand all
127 127
128 FX_SAFE_SIZE_T newPos = size; 128 FX_SAFE_SIZE_T newPos = size;
129 newPos += offset; 129 newPos += offset;
130 if (!newPos.IsValid() || newPos.ValueOrDefault(0) == 0 || 130 if (!newPos.IsValid() || newPos.ValueOrDefault(0) == 0 ||
131 newPos.ValueOrDie() > m_nCurSize) { 131 newPos.ValueOrDie() > m_nCurSize) {
132 return FALSE; 132 return FALSE;
133 } 133 }
134 134
135 m_nCurPos = newPos.ValueOrDie(); 135 m_nCurPos = newPos.ValueOrDie();
136 if (m_dwFlags & FX_MEMSTREAM_Consecutive) { 136 if (m_dwFlags & FX_MEMSTREAM_Consecutive) {
137 FXSYS_memcpy(buffer, (uint8_t*)m_Blocks[0] + (size_t)offset, size); 137 FXSYS_memcpy(buffer, m_Blocks[0] + (size_t)offset, size);
138 return TRUE; 138 return TRUE;
139 } 139 }
140 size_t nStartBlock = (size_t)offset / m_nGrowSize; 140 size_t nStartBlock = (size_t)offset / m_nGrowSize;
141 offset -= (FX_FILESIZE)(nStartBlock * m_nGrowSize); 141 offset -= (FX_FILESIZE)(nStartBlock * m_nGrowSize);
142 while (size) { 142 while (size) {
143 size_t nRead = m_nGrowSize - (size_t)offset; 143 size_t nRead = m_nGrowSize - (size_t)offset;
144 if (nRead > size) { 144 if (nRead > size) {
145 nRead = size; 145 nRead = size;
146 } 146 }
147 FXSYS_memcpy( 147 FXSYS_memcpy(buffer, m_Blocks[(int)nStartBlock] + (size_t)offset, nRead);
148 buffer, (uint8_t*)m_Blocks[(int)nStartBlock] + (size_t)offset, nRead);
149 buffer = ((uint8_t*)buffer) + nRead; 148 buffer = ((uint8_t*)buffer) + nRead;
150 size -= nRead; 149 size -= nRead;
151 nStartBlock++; 150 nStartBlock++;
152 offset = 0; 151 offset = 0;
153 } 152 }
154 return TRUE; 153 return TRUE;
155 } 154 }
156 size_t ReadBlock(void* buffer, size_t size) override { 155 size_t ReadBlock(void* buffer, size_t size) override {
157 if (m_nCurPos >= m_nCurSize) { 156 if (m_nCurPos >= m_nCurSize) {
158 return 0; 157 return 0;
(...skipping 14 matching lines...) Expand all
173 FX_SAFE_SIZE_T newPos = size; 172 FX_SAFE_SIZE_T newPos = size;
174 newPos += offset; 173 newPos += offset;
175 if (!newPos.IsValid()) 174 if (!newPos.IsValid())
176 return FALSE; 175 return FALSE;
177 176
178 m_nCurPos = newPos.ValueOrDie(); 177 m_nCurPos = newPos.ValueOrDie();
179 if (m_nCurPos > m_nTotalSize) { 178 if (m_nCurPos > m_nTotalSize) {
180 m_nTotalSize = 179 m_nTotalSize =
181 (m_nCurPos + m_nGrowSize - 1) / m_nGrowSize * m_nGrowSize; 180 (m_nCurPos + m_nGrowSize - 1) / m_nGrowSize * m_nGrowSize;
182 if (m_Blocks.GetSize() < 1) { 181 if (m_Blocks.GetSize() < 1) {
183 void* block = FX_Alloc(uint8_t, m_nTotalSize); 182 uint8_t* block = FX_Alloc(uint8_t, m_nTotalSize);
184 m_Blocks.Add(block); 183 m_Blocks.Add(block);
185 } else { 184 } else {
186 m_Blocks[0] = FX_Realloc(uint8_t, m_Blocks[0], m_nTotalSize); 185 m_Blocks[0] = FX_Realloc(uint8_t, m_Blocks[0], m_nTotalSize);
187 } 186 }
188 if (!m_Blocks[0]) { 187 if (!m_Blocks[0]) {
189 m_Blocks.RemoveAll(); 188 m_Blocks.RemoveAll();
190 return FALSE; 189 return FALSE;
191 } 190 }
192 } 191 }
193 FXSYS_memcpy((uint8_t*)m_Blocks[0] + (size_t)offset, buffer, size); 192 FXSYS_memcpy(m_Blocks[0] + (size_t)offset, buffer, size);
194 if (m_nCurSize < m_nCurPos) { 193 if (m_nCurSize < m_nCurPos) {
195 m_nCurSize = m_nCurPos; 194 m_nCurSize = m_nCurPos;
196 } 195 }
197 return TRUE; 196 return TRUE;
198 } 197 }
199 198
200 FX_SAFE_SIZE_T newPos = size; 199 FX_SAFE_SIZE_T newPos = size;
201 newPos += offset; 200 newPos += offset;
202 if (!newPos.IsValid()) { 201 if (!newPos.IsValid()) {
203 return FALSE; 202 return FALSE;
204 } 203 }
205 204
206 if (!ExpandBlocks(newPos.ValueOrDie())) { 205 if (!ExpandBlocks(newPos.ValueOrDie())) {
207 return FALSE; 206 return FALSE;
208 } 207 }
209 m_nCurPos = newPos.ValueOrDie(); 208 m_nCurPos = newPos.ValueOrDie();
210 size_t nStartBlock = (size_t)offset / m_nGrowSize; 209 size_t nStartBlock = (size_t)offset / m_nGrowSize;
211 offset -= (FX_FILESIZE)(nStartBlock * m_nGrowSize); 210 offset -= (FX_FILESIZE)(nStartBlock * m_nGrowSize);
212 while (size) { 211 while (size) {
213 size_t nWrite = m_nGrowSize - (size_t)offset; 212 size_t nWrite = m_nGrowSize - (size_t)offset;
214 if (nWrite > size) { 213 if (nWrite > size) {
215 nWrite = size; 214 nWrite = size;
216 } 215 }
217 FXSYS_memcpy((uint8_t*)m_Blocks[(int)nStartBlock] + (size_t)offset, 216 FXSYS_memcpy(m_Blocks[(int)nStartBlock] + (size_t)offset, buffer, nWrite);
218 buffer, nWrite);
219 buffer = ((uint8_t*)buffer) + nWrite; 217 buffer = ((uint8_t*)buffer) + nWrite;
220 size -= nWrite; 218 size -= nWrite;
221 nStartBlock++; 219 nStartBlock++;
222 offset = 0; 220 offset = 0;
223 } 221 }
224 return TRUE; 222 return TRUE;
225 } 223 }
226 FX_BOOL Flush() override { return TRUE; } 224 FX_BOOL Flush() override { return TRUE; }
227 FX_BOOL IsConsecutive() const override { 225 FX_BOOL IsConsecutive() const override {
228 return m_dwFlags & FX_MEMSTREAM_Consecutive; 226 return m_dwFlags & FX_MEMSTREAM_Consecutive;
229 } 227 }
230 void EstimateSize(size_t nInitSize, size_t nGrowSize) override { 228 void EstimateSize(size_t nInitSize, size_t nGrowSize) override {
231 if (m_dwFlags & FX_MEMSTREAM_Consecutive) { 229 if (m_dwFlags & FX_MEMSTREAM_Consecutive) {
232 if (m_Blocks.GetSize() < 1) { 230 if (m_Blocks.GetSize() < 1) {
233 uint8_t* pBlock = FX_Alloc(uint8_t, FX_MAX(nInitSize, 4096)); 231 uint8_t* pBlock = FX_Alloc(uint8_t, FX_MAX(nInitSize, 4096));
234 m_Blocks.Add(pBlock); 232 m_Blocks.Add(pBlock);
235 } 233 }
236 m_nGrowSize = FX_MAX(nGrowSize, 4096); 234 m_nGrowSize = FX_MAX(nGrowSize, 4096);
237 } else if (m_Blocks.GetSize() < 1) { 235 } else if (m_Blocks.GetSize() < 1) {
238 m_nGrowSize = FX_MAX(nGrowSize, 4096); 236 m_nGrowSize = FX_MAX(nGrowSize, 4096);
239 } 237 }
240 } 238 }
241 uint8_t* GetBuffer() const override { 239 uint8_t* GetBuffer() const override {
242 return m_Blocks.GetSize() ? (uint8_t*)m_Blocks[0] : NULL; 240 return m_Blocks.GetSize() ? m_Blocks[0] : nullptr;
243 } 241 }
244 void AttachBuffer(uint8_t* pBuffer, 242 void AttachBuffer(uint8_t* pBuffer,
245 size_t nSize, 243 size_t nSize,
246 FX_BOOL bTakeOver = FALSE) override { 244 FX_BOOL bTakeOver = FALSE) override {
247 if (!(m_dwFlags & FX_MEMSTREAM_Consecutive)) { 245 if (!(m_dwFlags & FX_MEMSTREAM_Consecutive)) {
248 return; 246 return;
249 } 247 }
250 m_Blocks.RemoveAll(); 248 m_Blocks.RemoveAll();
251 m_Blocks.Add(pBuffer); 249 m_Blocks.Add(pBuffer);
252 m_nTotalSize = m_nCurSize = nSize; 250 m_nTotalSize = m_nCurSize = nSize;
253 m_nCurPos = 0; 251 m_nCurPos = 0;
254 m_dwFlags = 252 m_dwFlags =
255 FX_MEMSTREAM_Consecutive | (bTakeOver ? FX_MEMSTREAM_TakeOver : 0); 253 FX_MEMSTREAM_Consecutive | (bTakeOver ? FX_MEMSTREAM_TakeOver : 0);
256 } 254 }
257 void DetachBuffer() override { 255 void DetachBuffer() override {
258 if (!(m_dwFlags & FX_MEMSTREAM_Consecutive)) { 256 if (!(m_dwFlags & FX_MEMSTREAM_Consecutive)) {
259 return; 257 return;
260 } 258 }
261 m_Blocks.RemoveAll(); 259 m_Blocks.RemoveAll();
262 m_nTotalSize = m_nCurSize = m_nCurPos = 0; 260 m_nTotalSize = m_nCurSize = m_nCurPos = 0;
263 m_dwFlags = FX_MEMSTREAM_TakeOver; 261 m_dwFlags = FX_MEMSTREAM_TakeOver;
264 } 262 }
265 263
266 protected: 264 protected:
267 CFX_PtrArray m_Blocks; 265 CFX_ArrayTemplate<uint8_t*> m_Blocks;
268 FX_DWORD m_dwCount; 266 FX_DWORD m_dwCount;
269 size_t m_nTotalSize; 267 size_t m_nTotalSize;
270 size_t m_nCurSize; 268 size_t m_nCurSize;
271 size_t m_nCurPos; 269 size_t m_nCurPos;
272 size_t m_nGrowSize; 270 size_t m_nGrowSize;
273 FX_DWORD m_dwFlags; 271 FX_DWORD m_dwFlags;
274 FX_BOOL ExpandBlocks(size_t size) { 272 FX_BOOL ExpandBlocks(size_t size) {
275 if (m_nCurSize < size) { 273 if (m_nCurSize < size) {
276 m_nCurSize = size; 274 m_nCurSize = size;
277 } 275 }
(...skipping 31 matching lines...) Expand 10 before | Expand all | Expand 10 after
309 } FX_MTRANDOMCONTEXT, *FX_LPMTRANDOMCONTEXT; 307 } FX_MTRANDOMCONTEXT, *FX_LPMTRANDOMCONTEXT;
310 typedef FX_MTRANDOMCONTEXT const* FX_LPCMTRANDOMCONTEXT; 308 typedef FX_MTRANDOMCONTEXT const* FX_LPCMTRANDOMCONTEXT;
311 #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ 309 #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
312 FX_BOOL FX_GenerateCryptoRandom(FX_DWORD* pBuffer, int32_t iCount); 310 FX_BOOL FX_GenerateCryptoRandom(FX_DWORD* pBuffer, int32_t iCount);
313 #endif 311 #endif
314 #ifdef __cplusplus 312 #ifdef __cplusplus
315 } 313 }
316 #endif 314 #endif
317 315
318 #endif // CORE_SRC_FXCRT_EXTENSION_H_ 316 #endif // CORE_SRC_FXCRT_EXTENSION_H_
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