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1 /* | 1 /* |
2 * Copyright 2011 Google Inc. | 2 * Copyright 2011 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 SkData_DEFINED | 8 #ifndef SkData_DEFINED |
9 #define SkData_DEFINED | 9 #define SkData_DEFINED |
10 | 10 |
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60 * length to the size of the data. If buffer is NULL, it is ignored, and | 60 * length to the size of the data. If buffer is NULL, it is ignored, and |
61 * only the computed number of bytes is returned. | 61 * only the computed number of bytes is returned. |
62 */ | 62 */ |
63 size_t copyRange(size_t offset, size_t length, void* buffer) const; | 63 size_t copyRange(size_t offset, size_t length, void* buffer) const; |
64 | 64 |
65 /** | 65 /** |
66 * Returns true if these two objects have the same length and contents, | 66 * Returns true if these two objects have the same length and contents, |
67 * effectively returning 0 == memcmp(...) | 67 * effectively returning 0 == memcmp(...) |
68 */ | 68 */ |
69 bool equals(const SkData* other) const; | 69 bool equals(const SkData* other) const; |
70 #ifdef SK_SUPPORT_LEGACY_DATA_FACTORIES | |
71 bool equals(sk_sp<const SkData>& other) const { return this->equals(other.ge
t()); } | |
72 #endif | |
73 | 70 |
74 /** | 71 /** |
75 * Function that, if provided, will be called when the SkData goes out | 72 * Function that, if provided, will be called when the SkData goes out |
76 * of scope, allowing for custom allocation/freeing of the data's contents. | 73 * of scope, allowing for custom allocation/freeing of the data's contents. |
77 */ | 74 */ |
78 typedef void (*ReleaseProc)(const void* ptr, void* context); | 75 typedef void (*ReleaseProc)(const void* ptr, void* context); |
79 | 76 |
80 /** | 77 /** |
81 * Create a new dataref by copying the specified data | 78 * Create a new dataref by copying the specified data |
82 */ | 79 */ |
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153 * src dataref. | 150 * src dataref. |
154 */ | 151 */ |
155 static sk_sp<SkData> MakeSubset(const SkData* src, size_t offset, size_t len
gth); | 152 static sk_sp<SkData> MakeSubset(const SkData* src, size_t offset, size_t len
gth); |
156 | 153 |
157 /** | 154 /** |
158 * Returns a new empty dataref (or a reference to a shared empty dataref). | 155 * Returns a new empty dataref (or a reference to a shared empty dataref). |
159 * New or shared, the caller must see that unref() is eventually called. | 156 * New or shared, the caller must see that unref() is eventually called. |
160 */ | 157 */ |
161 static sk_sp<SkData> MakeEmpty(); | 158 static sk_sp<SkData> MakeEmpty(); |
162 | 159 |
163 #ifdef SK_SUPPORT_LEGACY_DATA_FACTORIES | |
164 static SkData* NewWithCopy(const void* data, size_t length) { | |
165 return MakeWithCopy(data, length).release(); | |
166 } | |
167 static SkData* NewUninitialized(size_t length) { | |
168 return MakeUninitialized(length).release(); | |
169 } | |
170 static SkData* NewWithCString(const char cstr[]) { | |
171 return MakeWithCString(cstr).release(); | |
172 } | |
173 static SkData* NewWithProc(const void* ptr, size_t length, ReleaseProc proc,
void* context) { | |
174 return MakeWithProc(ptr, length, proc, context).release(); | |
175 } | |
176 static SkData* NewWithoutCopy(const void* data, size_t length) { | |
177 return MakeWithoutCopy(data, length).release(); | |
178 } | |
179 static SkData* NewFromMalloc(const void* data, size_t length) { | |
180 return MakeFromMalloc(data, length).release(); | |
181 } | |
182 static SkData* NewFromFileName(const char path[]) { return MakeFromFileName(
path).release(); } | |
183 static SkData* NewFromFILE(FILE* f) { return MakeFromFILE(f).release(); } | |
184 static SkData* NewFromFD(int fd) { return MakeFromFD(fd).release(); } | |
185 static SkData* NewFromStream(SkStream* stream, size_t size) { | |
186 return MakeFromStream(stream, size).release(); | |
187 } | |
188 static SkData* NewSubset(const SkData* src, size_t offset, size_t length) { | |
189 return MakeSubset(src, offset, length).release(); | |
190 } | |
191 static SkData* NewEmpty() { return MakeEmpty().release(); } | |
192 #endif | |
193 | |
194 private: | 160 private: |
195 ReleaseProc fReleaseProc; | 161 ReleaseProc fReleaseProc; |
196 void* fReleaseProcContext; | 162 void* fReleaseProcContext; |
197 void* fPtr; | 163 void* fPtr; |
198 size_t fSize; | 164 size_t fSize; |
199 | 165 |
200 SkData(const void* ptr, size_t size, ReleaseProc, void* context); | 166 SkData(const void* ptr, size_t size, ReleaseProc, void* context); |
201 explicit SkData(size_t size); // inplace new/delete | 167 explicit SkData(size_t size); // inplace new/delete |
202 virtual ~SkData(); | 168 virtual ~SkData(); |
203 | 169 |
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214 friend SkData* sk_new_empty_data(); | 180 friend SkData* sk_new_empty_data(); |
215 | 181 |
216 // shared internal factory | 182 // shared internal factory |
217 static sk_sp<SkData> PrivateNewWithCopy(const void* srcOrNull, size_t length
); | 183 static sk_sp<SkData> PrivateNewWithCopy(const void* srcOrNull, size_t length
); |
218 | 184 |
219 static void DummyReleaseProc(const void*, void*); // {} | 185 static void DummyReleaseProc(const void*, void*); // {} |
220 | 186 |
221 typedef SkRefCnt INHERITED; | 187 typedef SkRefCnt INHERITED; |
222 }; | 188 }; |
223 | 189 |
224 #ifdef SK_SUPPORT_LEGACY_DATA_FACTORIES | |
225 /** Typedef of SkAutoTUnref<SkData> for automatically unref-ing a SkData. */ | |
226 typedef SkAutoTUnref<SkData> SkAutoDataUnref; | |
227 #endif | 190 #endif |
228 | |
229 #endif | |
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