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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 | 8 |
9 #ifndef SkShader_DEFINED | 9 #ifndef SkShader_DEFINED |
10 #define SkShader_DEFINED | 10 #define SkShader_DEFINED |
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353 | 353 |
354 virtual GradientType asAGradient(GradientInfo* info) const; | 354 virtual GradientType asAGradient(GradientInfo* info) const; |
355 | 355 |
356 /** | 356 /** |
357 * If the shader subclass has a GrEffect implementation, this resturns the
effect to install. | 357 * If the shader subclass has a GrEffect implementation, this resturns the
effect to install. |
358 * The incoming color to the effect has r=g=b=a all extracted from the SkPa
int's alpha. | 358 * The incoming color to the effect has r=g=b=a all extracted from the SkPa
int's alpha. |
359 * The output color should be the computed SkShader premul color modulated
by the incoming | 359 * The output color should be the computed SkShader premul color modulated
by the incoming |
360 * color. The GrContext may be used by the effect to create textures. The G
PU device does not | 360 * color. The GrContext may be used by the effect to create textures. The G
PU device does not |
361 * call createContext. Instead we pass the SkPaint here in case the shader
needs paint info. | 361 * call createContext. Instead we pass the SkPaint here in case the shader
needs paint info. |
362 */ | 362 */ |
363 virtual GrEffectRef* asNewEffect(GrContext* context, const SkPaint& paint) c
onst; | 363 virtual GrEffectRef* asNewEffect(GrContext* context, const SkPaint& paint, |
| 364 const SkMatrix* localMatrixOrNull) const; |
364 | 365 |
365 ////////////////////////////////////////////////////////////////////////// | 366 ////////////////////////////////////////////////////////////////////////// |
366 // Factory methods for stock shaders | 367 // Factory methods for stock shaders |
367 | 368 |
368 /** | 369 /** |
369 * Call this to create a new "empty" shader, that will not draw anything. | 370 * Call this to create a new "empty" shader, that will not draw anything. |
370 */ | 371 */ |
371 static SkShader* CreateEmptyShader(); | 372 static SkShader* CreateEmptyShader(); |
372 | 373 |
373 /** Call this to create a new shader that will draw with the specified bitma
p. | 374 /** Call this to create a new shader that will draw with the specified bitma
p. |
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433 */ | 434 */ |
434 virtual Context* onCreateContext(const ContextRec&, void* storage) const; | 435 virtual Context* onCreateContext(const ContextRec&, void* storage) const; |
435 | 436 |
436 private: | 437 private: |
437 SkMatrix fLocalMatrix; | 438 SkMatrix fLocalMatrix; |
438 | 439 |
439 typedef SkFlattenable INHERITED; | 440 typedef SkFlattenable INHERITED; |
440 }; | 441 }; |
441 | 442 |
442 #endif | 443 #endif |
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