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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 #include "xfa/fgas/crt/fgas_algorithm.h" | 7 #include "xfa/fgas/crt/fgas_algorithm.h" |
8 | 8 |
9 #include "core/fxcrt/include/fx_basic.h" | 9 #include "core/fxcrt/include/fx_basic.h" |
10 | 10 |
11 #ifdef __cplusplus | 11 #ifdef __cplusplus |
12 extern "C" { | 12 extern "C" { |
13 #endif | 13 #endif |
14 | 14 |
15 static const FX_CHAR g_FXBase64EncoderMap[64] = { | 15 static const FX_CHAR g_FXBase64EncoderMap[64] = { |
16 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', | 16 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', |
17 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', | 17 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', |
18 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', | 18 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', |
19 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', | 19 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', |
20 '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/', | 20 '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/', |
21 }; | 21 }; |
22 | 22 |
23 struct FX_BASE64DATA { | 23 struct FX_BASE64DATA { |
24 FX_DWORD data1 : 2; | 24 uint32_t data1 : 2; |
25 FX_DWORD data2 : 6; | 25 uint32_t data2 : 6; |
26 FX_DWORD data3 : 4; | 26 uint32_t data3 : 4; |
27 FX_DWORD data4 : 4; | 27 uint32_t data4 : 4; |
28 FX_DWORD data5 : 6; | 28 uint32_t data5 : 6; |
29 FX_DWORD data6 : 2; | 29 uint32_t data6 : 2; |
30 FX_DWORD data7 : 8; | 30 uint32_t data7 : 8; |
31 }; | 31 }; |
32 | 32 |
33 static void FX_Base64EncodePiece(const FX_BASE64DATA& src, | 33 static void FX_Base64EncodePiece(const FX_BASE64DATA& src, |
34 int32_t iBytes, | 34 int32_t iBytes, |
35 FX_CHAR dst[4]) { | 35 FX_CHAR dst[4]) { |
36 dst[0] = g_FXBase64EncoderMap[src.data2]; | 36 dst[0] = g_FXBase64EncoderMap[src.data2]; |
37 FX_DWORD b = src.data1 << 4; | 37 uint32_t b = src.data1 << 4; |
38 if (iBytes > 1) { | 38 if (iBytes > 1) { |
39 b |= src.data4; | 39 b |= src.data4; |
40 } | 40 } |
41 dst[1] = g_FXBase64EncoderMap[b]; | 41 dst[1] = g_FXBase64EncoderMap[b]; |
42 if (iBytes > 1) { | 42 if (iBytes > 1) { |
43 b = src.data3 << 2; | 43 b = src.data3 << 2; |
44 if (iBytes > 2) { | 44 if (iBytes > 2) { |
45 b |= src.data6; | 45 b |= src.data6; |
46 } | 46 } |
47 dst[2] = g_FXBase64EncoderMap[b]; | 47 dst[2] = g_FXBase64EncoderMap[b]; |
(...skipping 21 matching lines...) Expand all Loading... |
69 FX_BASE64DATA srcData; | 69 FX_BASE64DATA srcData; |
70 int32_t iBytes = 3; | 70 int32_t iBytes = 3; |
71 FX_CHAR* pDstEnd = pDst; | 71 FX_CHAR* pDstEnd = pDst; |
72 while (iSrcLen > 0) { | 72 while (iSrcLen > 0) { |
73 if (iSrcLen > 2) { | 73 if (iSrcLen > 2) { |
74 ((uint8_t*)&srcData)[0] = *pSrc++; | 74 ((uint8_t*)&srcData)[0] = *pSrc++; |
75 ((uint8_t*)&srcData)[1] = *pSrc++; | 75 ((uint8_t*)&srcData)[1] = *pSrc++; |
76 ((uint8_t*)&srcData)[2] = *pSrc++; | 76 ((uint8_t*)&srcData)[2] = *pSrc++; |
77 iSrcLen -= 3; | 77 iSrcLen -= 3; |
78 } else { | 78 } else { |
79 *((FX_DWORD*)&srcData) = 0; | 79 *((uint32_t*)&srcData) = 0; |
80 ((uint8_t*)&srcData)[0] = *pSrc++; | 80 ((uint8_t*)&srcData)[0] = *pSrc++; |
81 if (iSrcLen > 1) { | 81 if (iSrcLen > 1) { |
82 ((uint8_t*)&srcData)[1] = *pSrc++; | 82 ((uint8_t*)&srcData)[1] = *pSrc++; |
83 } | 83 } |
84 iBytes = iSrcLen; | 84 iBytes = iSrcLen; |
85 iSrcLen = 0; | 85 iSrcLen = 0; |
86 } | 86 } |
87 FX_Base64EncodePiece(srcData, iBytes, pDstEnd); | 87 FX_Base64EncodePiece(srcData, iBytes, pDstEnd); |
88 pDstEnd += 4; | 88 pDstEnd += 4; |
89 } | 89 } |
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165 iDstLen += 2; | 165 iDstLen += 2; |
166 } | 166 } |
167 return iDstLen; | 167 return iDstLen; |
168 } | 168 } |
169 FX_CHAR srcData[4]; | 169 FX_CHAR srcData[4]; |
170 FX_BASE64DATA dstData; | 170 FX_BASE64DATA dstData; |
171 int32_t iChars = 4, iBytes; | 171 int32_t iChars = 4, iBytes; |
172 uint8_t* pDstEnd = pDst; | 172 uint8_t* pDstEnd = pDst; |
173 while (iSrcLen > 0) { | 173 while (iSrcLen > 0) { |
174 if (iSrcLen > 3) { | 174 if (iSrcLen > 3) { |
175 *((FX_DWORD*)srcData) = *((FX_DWORD*)pSrc); | 175 *((uint32_t*)srcData) = *((uint32_t*)pSrc); |
176 pSrc += 4; | 176 pSrc += 4; |
177 iSrcLen -= 4; | 177 iSrcLen -= 4; |
178 } else { | 178 } else { |
179 *((FX_DWORD*)&dstData) = 0; | 179 *((uint32_t*)&dstData) = 0; |
180 *((FX_DWORD*)srcData) = 0; | 180 *((uint32_t*)srcData) = 0; |
181 srcData[0] = *pSrc++; | 181 srcData[0] = *pSrc++; |
182 if (iSrcLen > 1) { | 182 if (iSrcLen > 1) { |
183 srcData[1] = *pSrc++; | 183 srcData[1] = *pSrc++; |
184 } | 184 } |
185 if (iSrcLen > 2) { | 185 if (iSrcLen > 2) { |
186 srcData[2] = *pSrc++; | 186 srcData[2] = *pSrc++; |
187 } | 187 } |
188 iChars = iSrcLen; | 188 iChars = iSrcLen; |
189 iSrcLen = 0; | 189 iSrcLen = 0; |
190 } | 190 } |
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227 int32_t iChars = 4, iBytes; | 227 int32_t iChars = 4, iBytes; |
228 uint8_t* pDstEnd = pDst; | 228 uint8_t* pDstEnd = pDst; |
229 while (iSrcLen > 0) { | 229 while (iSrcLen > 0) { |
230 if (iSrcLen > 3) { | 230 if (iSrcLen > 3) { |
231 srcData[0] = (FX_CHAR)*pSrc++; | 231 srcData[0] = (FX_CHAR)*pSrc++; |
232 srcData[1] = (FX_CHAR)*pSrc++; | 232 srcData[1] = (FX_CHAR)*pSrc++; |
233 srcData[2] = (FX_CHAR)*pSrc++; | 233 srcData[2] = (FX_CHAR)*pSrc++; |
234 srcData[3] = (FX_CHAR)*pSrc++; | 234 srcData[3] = (FX_CHAR)*pSrc++; |
235 iSrcLen -= 4; | 235 iSrcLen -= 4; |
236 } else { | 236 } else { |
237 *((FX_DWORD*)&dstData) = 0; | 237 *((uint32_t*)&dstData) = 0; |
238 *((FX_DWORD*)srcData) = 0; | 238 *((uint32_t*)srcData) = 0; |
239 srcData[0] = (FX_CHAR)*pSrc++; | 239 srcData[0] = (FX_CHAR)*pSrc++; |
240 if (iSrcLen > 1) { | 240 if (iSrcLen > 1) { |
241 srcData[1] = (FX_CHAR)*pSrc++; | 241 srcData[1] = (FX_CHAR)*pSrc++; |
242 } | 242 } |
243 if (iSrcLen > 2) { | 243 if (iSrcLen > 2) { |
244 srcData[2] = (FX_CHAR)*pSrc++; | 244 srcData[2] = (FX_CHAR)*pSrc++; |
245 } | 245 } |
246 iChars = iSrcLen; | 246 iChars = iSrcLen; |
247 iSrcLen = 0; | 247 iSrcLen = 0; |
248 } | 248 } |
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297 break; | 297 break; |
298 } | 298 } |
299 } | 299 } |
300 pStr++; | 300 pStr++; |
301 } | 301 } |
302 return pieces.GetSize(); | 302 return pieces.GetSize(); |
303 } | 303 } |
304 #ifdef __cplusplus | 304 #ifdef __cplusplus |
305 } | 305 } |
306 #endif | 306 #endif |
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