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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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404 * successfully creating a picture shader. | 404 * successfully creating a picture shader. |
405 * @param tmx The tiling mode to use when sampling the bitmap in the x-dir
ection. | 405 * @param tmx The tiling mode to use when sampling the bitmap in the x-dir
ection. |
406 * @param tmy The tiling mode to use when sampling the bitmap in the y-dir
ection. | 406 * @param tmy The tiling mode to use when sampling the bitmap in the y-dir
ection. |
407 * @param tile The tile rectangle in picture coordinates: this represents t
he subset | 407 * @param tile The tile rectangle in picture coordinates: this represents t
he subset |
408 * (or superset) of the picture used when building a tile. It i
s not | 408 * (or superset) of the picture used when building a tile. It i
s not |
409 * affected by localMatrix and does not imply scaling (only tra
nslation | 409 * affected by localMatrix and does not imply scaling (only tra
nslation |
410 * and cropping). If null, the tile rect is considered equal to
the picture | 410 * and cropping). If null, the tile rect is considered equal to
the picture |
411 * bounds. | 411 * bounds. |
412 * @return Returns a new shader object. Note: this function never retur
ns null. | 412 * @return Returns a new shader object. Note: this function never retur
ns null. |
413 */ | 413 */ |
414 static sk_sp<SkShader> MakePictureShader(sk_sp<const SkPicture> src, TileMod
e tmx, TileMode tmy, | 414 static sk_sp<SkShader> MakePictureShader(sk_sp<SkPicture> src, TileMode tmx,
TileMode tmy, |
415 const SkMatrix* localMatrix, const
SkRect* tile); | 415 const SkMatrix* localMatrix, const
SkRect* tile); |
416 | 416 |
417 /** | 417 /** |
418 * If this shader can be represented by another shader + a localMatrix, ret
urn that shader | 418 * If this shader can be represented by another shader + a localMatrix, ret
urn that shader |
419 * and, if not NULL, the localMatrix. If not, return NULL and ignore the lo
calMatrix parameter. | 419 * and, if not NULL, the localMatrix. If not, return NULL and ignore the lo
calMatrix parameter. |
420 * | 420 * |
421 * Note: the returned shader (if not NULL) will have been ref'd, and it is
the responsibility | 421 * Note: the returned shader (if not NULL) will have been ref'd, and it is
the responsibility |
422 * of the caller to balance that with unref() when they are done. | 422 * of the caller to balance that with unref() when they are done. |
423 */ | 423 */ |
424 virtual SkShader* refAsALocalMatrixShader(SkMatrix* localMatrix) const; | 424 virtual SkShader* refAsALocalMatrixShader(SkMatrix* localMatrix) const; |
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457 SkMatrix fLocalMatrix; | 457 SkMatrix fLocalMatrix; |
458 | 458 |
459 // So the SkLocalMatrixShader can whack fLocalMatrix in its SkReadBuffer con
structor. | 459 // So the SkLocalMatrixShader can whack fLocalMatrix in its SkReadBuffer con
structor. |
460 friend class SkLocalMatrixShader; | 460 friend class SkLocalMatrixShader; |
461 friend class SkBitmapProcShader; // for computeTotalInverse() | 461 friend class SkBitmapProcShader; // for computeTotalInverse() |
462 | 462 |
463 typedef SkFlattenable INHERITED; | 463 typedef SkFlattenable INHERITED; |
464 }; | 464 }; |
465 | 465 |
466 #endif | 466 #endif |
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