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1 /* | 1 /* |
2 * Copyright 2012 Google Inc. | 2 * Copyright 2012 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef SkMD5_DEFINED | 8 #ifndef SkMD5_DEFINED |
9 #define SkMD5_DEFINED | 9 #define SkMD5_DEFINED |
10 | 10 |
(...skipping 11 matching lines...) Expand all Loading... |
22 SkMD5(); | 22 SkMD5(); |
23 | 23 |
24 /** Processes input, adding it to the digest. | 24 /** Processes input, adding it to the digest. |
25 * Note that this treats the buffer as a series of uint8_t values. | 25 * Note that this treats the buffer as a series of uint8_t values. |
26 */ | 26 */ |
27 virtual bool write(const void* buffer, size_t size) SK_OVERRIDE { | 27 virtual bool write(const void* buffer, size_t size) SK_OVERRIDE { |
28 this->update(reinterpret_cast<const uint8_t*>(buffer), size); | 28 this->update(reinterpret_cast<const uint8_t*>(buffer), size); |
29 return true; | 29 return true; |
30 } | 30 } |
31 | 31 |
| 32 virtual size_t bytesWritten() const SK_OVERRIDE { return SkToSizeT(this->byt
eCount); } |
| 33 |
32 /** Processes input, adding it to the digest. Calling this after finish is u
ndefined. */ | 34 /** Processes input, adding it to the digest. Calling this after finish is u
ndefined. */ |
33 void update(const uint8_t* input, size_t length); | 35 void update(const uint8_t* input, size_t length); |
34 | 36 |
35 struct Digest { | 37 struct Digest { |
36 uint8_t data[16]; | 38 uint8_t data[16]; |
37 }; | 39 }; |
38 | 40 |
39 /** Computes and returns the digest. */ | 41 /** Computes and returns the digest. */ |
40 void finish(Digest& digest); | 42 void finish(Digest& digest); |
41 | 43 |
42 private: | 44 private: |
43 // number of bytes, modulo 2^64 | 45 // number of bytes, modulo 2^64 |
44 uint64_t byteCount; | 46 uint64_t byteCount; |
45 | 47 |
46 // state (ABCD) | 48 // state (ABCD) |
47 uint32_t state[4]; | 49 uint32_t state[4]; |
48 | 50 |
49 // input buffer | 51 // input buffer |
50 uint8_t buffer[64]; | 52 uint8_t buffer[64]; |
51 }; | 53 }; |
52 | 54 |
53 #endif | 55 #endif |
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