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1 /* | 1 /* |
2 * Copyright 2006 The Android Open Source Project | 2 * Copyright 2006 The Android Open Source Project |
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 SkShader_DEFINED | 8 #ifndef SkShader_DEFINED |
9 #define SkShader_DEFINED | 9 #define SkShader_DEFINED |
10 | 10 |
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445 /** | 445 /** |
446 * If this shader can be represented by another shader + a localMatrix, ret
urn that shader | 446 * If this shader can be represented by another shader + a localMatrix, ret
urn that shader |
447 * and, if not NULL, the localMatrix. If not, return NULL and ignore the lo
calMatrix parameter. | 447 * and, if not NULL, the localMatrix. If not, return NULL and ignore the lo
calMatrix parameter. |
448 * | 448 * |
449 * Note: the returned shader (if not NULL) will have been ref'd, and it is
the responsibility | 449 * Note: the returned shader (if not NULL) will have been ref'd, and it is
the responsibility |
450 * of the caller to balance that with unref() when they are done. | 450 * of the caller to balance that with unref() when they are done. |
451 */ | 451 */ |
452 virtual SkShader* refAsALocalMatrixShader(SkMatrix* localMatrix) const; | 452 virtual SkShader* refAsALocalMatrixShader(SkMatrix* localMatrix) const; |
453 | 453 |
454 SK_TO_STRING_VIRT() | 454 SK_TO_STRING_VIRT() |
455 SK_DEFINE_FLATTENABLE_TYPE(SkShader) | |
456 | 455 |
457 protected: | 456 protected: |
458 void flatten(SkWriteBuffer&) const override; | 457 void flatten(SkWriteBuffer&) const override; |
459 | 458 |
460 bool computeTotalInverse(const ContextRec&, SkMatrix* totalInverse) const; | 459 bool computeTotalInverse(const ContextRec&, SkMatrix* totalInverse) const; |
461 | 460 |
462 /** | 461 /** |
463 * Your subclass must also override contextSize() if it overrides onCreateC
ontext(). | 462 * Your subclass must also override contextSize() if it overrides onCreateC
ontext(). |
464 * Base class impl returns NULL. | 463 * Base class impl returns NULL. |
465 */ | 464 */ |
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485 SkMatrix fLocalMatrix; | 484 SkMatrix fLocalMatrix; |
486 | 485 |
487 // So the SkLocalMatrixShader can whack fLocalMatrix in its SkReadBuffer con
structor. | 486 // So the SkLocalMatrixShader can whack fLocalMatrix in its SkReadBuffer con
structor. |
488 friend class SkLocalMatrixShader; | 487 friend class SkLocalMatrixShader; |
489 friend class SkBitmapProcShader; // for computeTotalInverse() | 488 friend class SkBitmapProcShader; // for computeTotalInverse() |
490 | 489 |
491 typedef SkFlattenable INHERITED; | 490 typedef SkFlattenable INHERITED; |
492 }; | 491 }; |
493 | 492 |
494 #endif | 493 #endif |
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