| OLD | NEW |
| 1 | 1 |
| 2 /* | 2 /* |
| 3 * Copyright 2011 Google Inc. | 3 * Copyright 2011 Google Inc. |
| 4 * | 4 * |
| 5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
| 6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
| 7 */ | 7 */ |
| 8 | 8 |
| 9 | 9 |
| 10 #include "SkBitSet.h" | 10 #include "SkBitSet.h" |
| 11 | 11 |
| 12 SkBitSet::SkBitSet(int numberOfBits) | 12 SkBitSet::SkBitSet(int numberOfBits) |
| 13 : fBitData(NULL), fDwordCount(0), fBitCount(numberOfBits) { | 13 : fBitData(nullptr), fDwordCount(0), fBitCount(numberOfBits) { |
| 14 SkASSERT(numberOfBits > 0); | 14 SkASSERT(numberOfBits > 0); |
| 15 // Round up size to 32-bit boundary. | 15 // Round up size to 32-bit boundary. |
| 16 fDwordCount = (numberOfBits + 31) / 32; | 16 fDwordCount = (numberOfBits + 31) / 32; |
| 17 fBitData.set(sk_calloc_throw(fDwordCount * sizeof(uint32_t))); | 17 fBitData.set(sk_calloc_throw(fDwordCount * sizeof(uint32_t))); |
| 18 } | 18 } |
| 19 | 19 |
| 20 SkBitSet::SkBitSet(const SkBitSet& source) | 20 SkBitSet::SkBitSet(const SkBitSet& source) |
| 21 : fBitData(NULL), fDwordCount(0), fBitCount(0) { | 21 : fBitData(nullptr), fDwordCount(0), fBitCount(0) { |
| 22 *this = source; | 22 *this = source; |
| 23 } | 23 } |
| 24 | 24 |
| 25 SkBitSet& SkBitSet::operator=(const SkBitSet& rhs) { | 25 SkBitSet& SkBitSet::operator=(const SkBitSet& rhs) { |
| 26 if (this == &rhs) { | 26 if (this == &rhs) { |
| 27 return *this; | 27 return *this; |
| 28 } | 28 } |
| 29 fBitCount = rhs.fBitCount; | 29 fBitCount = rhs.fBitCount; |
| 30 fBitData.free(); | 30 fBitData.free(); |
| 31 fDwordCount = rhs.fDwordCount; | 31 fDwordCount = rhs.fDwordCount; |
| 32 fBitData.set(sk_malloc_throw(fDwordCount * sizeof(uint32_t))); | 32 fBitData.set(sk_malloc_throw(fDwordCount * sizeof(uint32_t))); |
| 33 memcpy(fBitData.get(), rhs.fBitData.get(), fDwordCount * sizeof(uint32_t)); | 33 memcpy(fBitData.get(), rhs.fBitData.get(), fDwordCount * sizeof(uint32_t)); |
| 34 return *this; | 34 return *this; |
| 35 } | 35 } |
| 36 | 36 |
| 37 bool SkBitSet::operator==(const SkBitSet& rhs) { | 37 bool SkBitSet::operator==(const SkBitSet& rhs) { |
| 38 if (fBitCount == rhs.fBitCount) { | 38 if (fBitCount == rhs.fBitCount) { |
| 39 if (fBitData.get() != NULL) { | 39 if (fBitData.get() != nullptr) { |
| 40 return (memcmp(fBitData.get(), rhs.fBitData.get(), | 40 return (memcmp(fBitData.get(), rhs.fBitData.get(), |
| 41 fDwordCount * sizeof(uint32_t)) == 0); | 41 fDwordCount * sizeof(uint32_t)) == 0); |
| 42 } | 42 } |
| 43 return true; | 43 return true; |
| 44 } | 44 } |
| 45 return false; | 45 return false; |
| 46 } | 46 } |
| 47 | 47 |
| 48 bool SkBitSet::operator!=(const SkBitSet& rhs) { | 48 bool SkBitSet::operator!=(const SkBitSet& rhs) { |
| 49 return !(*this == rhs); | 49 return !(*this == rhs); |
| 50 } | 50 } |
| 51 | 51 |
| 52 void SkBitSet::clearAll() { | 52 void SkBitSet::clearAll() { |
| 53 if (fBitData.get() != NULL) { | 53 if (fBitData.get() != nullptr) { |
| 54 sk_bzero(fBitData.get(), fDwordCount * sizeof(uint32_t)); | 54 sk_bzero(fBitData.get(), fDwordCount * sizeof(uint32_t)); |
| 55 } | 55 } |
| 56 } | 56 } |
| 57 | 57 |
| 58 bool SkBitSet::orBits(const SkBitSet& source) { | 58 bool SkBitSet::orBits(const SkBitSet& source) { |
| 59 if (fBitCount != source.fBitCount) { | 59 if (fBitCount != source.fBitCount) { |
| 60 return false; | 60 return false; |
| 61 } | 61 } |
| 62 uint32_t* targetBitmap = this->internalGet(0); | 62 uint32_t* targetBitmap = this->internalGet(0); |
| 63 uint32_t* sourceBitmap = source.internalGet(0); | 63 uint32_t* sourceBitmap = source.internalGet(0); |
| 64 for (size_t i = 0; i < fDwordCount; ++i) { | 64 for (size_t i = 0; i < fDwordCount; ++i) { |
| 65 targetBitmap[i] |= sourceBitmap[i]; | 65 targetBitmap[i] |= sourceBitmap[i]; |
| 66 } | 66 } |
| 67 return true; | 67 return true; |
| 68 } | 68 } |
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