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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2006 The Android Open Source Project | 3 * Copyright 2006 The Android Open Source Project |
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 #ifndef SkDescriptor_DEFINED | 10 #ifndef SkDescriptor_DEFINED |
(...skipping 116 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... | |
127 } | 127 } |
128 | 128 |
129 // private so no one can create one except our factories | 129 // private so no one can create one except our factories |
130 SkDescriptor() {} | 130 SkDescriptor() {} |
131 }; | 131 }; |
132 | 132 |
133 #include "SkScalerContext.h" | 133 #include "SkScalerContext.h" |
134 | 134 |
135 class SkAutoDescriptor : SkNoncopyable { | 135 class SkAutoDescriptor : SkNoncopyable { |
136 public: | 136 public: |
137 SkAutoDescriptor() : fDesc(NULL) {} | |
137 SkAutoDescriptor(size_t size) { | 138 SkAutoDescriptor(size_t size) { |
138 if (size <= sizeof(fStorage)) { | 139 this->reset(size); |
139 fDesc = (SkDescriptor*)(void*)fStorage; | |
140 } else { | |
141 fDesc = SkDescriptor::Alloc(size); | |
142 } | |
143 } | 140 } |
144 | 141 |
145 ~SkAutoDescriptor() { | 142 ~SkAutoDescriptor() { |
146 if (fDesc != (SkDescriptor*)(void*)fStorage) { | 143 if (fDesc != (SkDescriptor*)(void*)fStorage) { |
147 SkDescriptor::Free(fDesc); | 144 SkDescriptor::Free(fDesc); |
148 } | 145 } |
149 } | 146 } |
150 | 147 |
151 SkDescriptor* getDesc() const { return fDesc; } | 148 void reset(size_t size) { |
149 if (size <= sizeof(fStorage)) { | |
bsalomon
2015/03/31 21:19:10
don't you need to free the old one here?
joshualitt
2015/04/01 13:21:17
Acknowledged.
| |
150 fDesc = (SkDescriptor*)(void*)fStorage; | |
151 } else { | |
152 fDesc = SkDescriptor::Alloc(size); | |
153 } | |
154 } | |
155 | |
156 SkDescriptor* getDesc() const { SkASSERT(fDesc); return fDesc; } | |
152 private: | 157 private: |
153 enum { | 158 enum { |
154 kStorageSize = sizeof(SkDescriptor) | 159 kStorageSize = sizeof(SkDescriptor) |
155 + sizeof(SkDescriptor::Entry) + sizeof(SkScalerContext:: Rec) // for rec | 160 + sizeof(SkDescriptor::Entry) + sizeof(SkScalerContext:: Rec) // for rec |
156 + sizeof(SkDescriptor::Entry) + sizeof(void*) // for typeface | 161 + sizeof(SkDescriptor::Entry) + sizeof(void*) // for typeface |
157 + 32 // slop for occational small extras | 162 + 32 // slop for occational small extras |
158 }; | 163 }; |
159 SkDescriptor* fDesc; | 164 SkDescriptor* fDesc; |
160 uint32_t fStorage[(kStorageSize + 3) >> 2]; | 165 uint32_t fStorage[(kStorageSize + 3) >> 2]; |
161 }; | 166 }; |
162 #define SkAutoDescriptor(...) SK_REQUIRE_LOCAL_VAR(SkAutoDescriptor) | 167 #define SkAutoDescriptor(...) SK_REQUIRE_LOCAL_VAR(SkAutoDescriptor) |
163 | 168 |
164 | 169 |
165 #endif | 170 #endif |
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