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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2005 The Android Open Source Project | 3 * Copyright 2005 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 SkRegion_DEFINED | 10 #ifndef SkRegion_DEFINED |
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354 private: | 354 private: |
355 const SkRegion::RunType* fRuns; | 355 const SkRegion::RunType* fRuns; |
356 int fLeft, fRight; | 356 int fLeft, fRight; |
357 bool fDone; | 357 bool fDone; |
358 }; | 358 }; |
359 | 359 |
360 /** | 360 /** |
361 * Write the region to the buffer, and return the number of bytes written. | 361 * Write the region to the buffer, and return the number of bytes written. |
362 * If buffer is NULL, it still returns the number of bytes. | 362 * If buffer is NULL, it still returns the number of bytes. |
363 */ | 363 */ |
364 uint32_t writeToMemory(void* buffer) const; | 364 size_t writeToMemory(void* buffer) const; |
365 | |
366 /** | 365 /** |
367 * Initialized the region from the buffer, returning the number | 366 * Initializes the region from the buffer |
368 * of bytes actually read. | 367 * |
| 368 * @param buffer Memory to read from |
| 369 * @param length Amount of memory available in the buffer |
| 370 * @return number of bytes read (must be a multiple of 4) or |
| 371 * 0 if there was not enough memory available |
369 */ | 372 */ |
370 uint32_t readFromMemory(const void* buffer); | 373 size_t readFromMemory(const void* buffer, size_t length); |
371 | 374 |
372 /** | 375 /** |
373 * Returns a reference to a global empty region. Just a convenience for | 376 * Returns a reference to a global empty region. Just a convenience for |
374 * callers that need a const empty region. | 377 * callers that need a const empty region. |
375 */ | 378 */ |
376 static const SkRegion& GetEmptyRegion(); | 379 static const SkRegion& GetEmptyRegion(); |
377 | 380 |
378 SkDEBUGCODE(void dump() const;) | 381 SkDEBUGCODE(void dump() const;) |
379 SkDEBUGCODE(void validate() const;) | 382 SkDEBUGCODE(void validate() const;) |
380 SkDEBUGCODE(static void UnitTest();) | 383 SkDEBUGCODE(static void UnitTest();) |
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437 static bool Oper(const SkRegion&, const SkRegion&, SkRegion::Op, SkRegion*); | 440 static bool Oper(const SkRegion&, const SkRegion&, SkRegion::Op, SkRegion*); |
438 | 441 |
439 friend struct RunHead; | 442 friend struct RunHead; |
440 friend class Iterator; | 443 friend class Iterator; |
441 friend class Spanerator; | 444 friend class Spanerator; |
442 friend class SkRgnBuilder; | 445 friend class SkRgnBuilder; |
443 friend class SkFlatRegion; | 446 friend class SkFlatRegion; |
444 }; | 447 }; |
445 | 448 |
446 #endif | 449 #endif |
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