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| 1 /* | 1 /* |
| 2 * Copyright 2012 Google Inc. | 2 * Copyright 2012 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 SkGradientShaderPriv_DEFINED | 8 #ifndef SkGradientShaderPriv_DEFINED |
| 9 #define SkGradientShaderPriv_DEFINED | 9 #define SkGradientShaderPriv_DEFINED |
| 10 | 10 |
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| 369 }; | 369 }; |
| 370 | 370 |
| 371 /////////////////////////////////////////////////////////////////////////////// | 371 /////////////////////////////////////////////////////////////////////////////// |
| 372 | 372 |
| 373 // Base class for GL gradient effects | 373 // Base class for GL gradient effects |
| 374 class GrGLGradientEffect : public GrGLEffect { | 374 class GrGLGradientEffect : public GrGLEffect { |
| 375 public: | 375 public: |
| 376 GrGLGradientEffect(const GrBackendEffectFactory& factory); | 376 GrGLGradientEffect(const GrBackendEffectFactory& factory); |
| 377 virtual ~GrGLGradientEffect(); | 377 virtual ~GrGLGradientEffect(); |
| 378 | 378 |
| 379 virtual void setData(const GrGLUniformManager&, const GrDrawEffect&) SK_OVER
RIDE; | 379 virtual void setData(const GrGLProgramDataManager&, const GrDrawEffect&) SK_
OVERRIDE; |
| 380 | 380 |
| 381 protected: | 381 protected: |
| 382 /** | 382 /** |
| 383 * Subclasses must call this. It will return a key for the part of the shade
r code controlled | 383 * Subclasses must call this. It will return a key for the part of the shade
r code controlled |
| 384 * by the base class. The subclasses must stick it in their key and then pas
s it to the below | 384 * by the base class. The subclasses must stick it in their key and then pas
s it to the below |
| 385 * emit* functions from their emitCode function. | 385 * emit* functions from their emitCode function. |
| 386 */ | 386 */ |
| 387 static uint32_t GenBaseGradientKey(const GrDrawEffect&); | 387 static uint32_t GenBaseGradientKey(const GrDrawEffect&); |
| 388 | 388 |
| 389 // Emits the uniform used as the y-coord to texture samples in derived class
es. Subclasses | 389 // Emits the uniform used as the y-coord to texture samples in derived class
es. Subclasses |
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| 428 | 428 |
| 429 static GrGradientEffect::PremulType PremulTypeFromKey(uint32_t baseKey){ | 429 static GrGradientEffect::PremulType PremulTypeFromKey(uint32_t baseKey){ |
| 430 if (kPremulBeforeInterpKey == (baseKey & kPremulTypeMask)) { | 430 if (kPremulBeforeInterpKey == (baseKey & kPremulTypeMask)) { |
| 431 return GrGradientEffect::kBeforeInterp_PremulType; | 431 return GrGradientEffect::kBeforeInterp_PremulType; |
| 432 } else { | 432 } else { |
| 433 return GrGradientEffect::kAfterInterp_PremulType; | 433 return GrGradientEffect::kAfterInterp_PremulType; |
| 434 } | 434 } |
| 435 } | 435 } |
| 436 | 436 |
| 437 SkScalar fCachedYCoord; | 437 SkScalar fCachedYCoord; |
| 438 GrGLUniformManager::UniformHandle fFSYUni; | 438 GrGLProgramDataManager::UniformHandle fFSYUni; |
| 439 GrGLUniformManager::UniformHandle fColorStartUni; | 439 GrGLProgramDataManager::UniformHandle fColorStartUni; |
| 440 GrGLUniformManager::UniformHandle fColorMidUni; | 440 GrGLProgramDataManager::UniformHandle fColorMidUni; |
| 441 GrGLUniformManager::UniformHandle fColorEndUni; | 441 GrGLProgramDataManager::UniformHandle fColorEndUni; |
| 442 | 442 |
| 443 typedef GrGLEffect INHERITED; | 443 typedef GrGLEffect INHERITED; |
| 444 }; | 444 }; |
| 445 | 445 |
| 446 #endif | 446 #endif |
| 447 | 447 |
| 448 #endif | 448 #endif |
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