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| 1 /* |
| 2 * Copyright 2015 Google Inc. |
| 3 * |
| 4 * Use of this source code is governed by a BSD-style license that can be |
| 5 * found in the LICENSE file. |
| 6 */ |
| 7 |
| 8 #ifndef SkArithmeticMode_gpu_DEFINED |
| 9 #define SkArithmeticMode_gpu_DEFINED |
| 10 |
| 11 #if SK_SUPPORT_GPU |
| 12 |
| 13 #include "GrCoordTransform.h" |
| 14 #include "GrFragmentProcessor.h" |
| 15 #include "GrTextureAccess.h" |
| 16 |
| 17 class GrInvariantOutput; |
| 18 class GrTexture; |
| 19 |
| 20 /////////////////////////////////////////////////////////////////////////////// |
| 21 // Fragment Processor |
| 22 /////////////////////////////////////////////////////////////////////////////// |
| 23 |
| 24 class GrGLArtithmeticFP; |
| 25 |
| 26 class GrArithmeticFP : public GrFragmentProcessor { |
| 27 public: |
| 28 static GrFragmentProcessor* Create(float k1, float k2, float k3, float k4, b
ool enforcePMColor, |
| 29 GrTexture* background) { |
| 30 return SkNEW_ARGS(GrArithmeticFP, (k1, k2, k3, k4, enforcePMColor, backg
round)); |
| 31 } |
| 32 |
| 33 ~GrArithmeticFP() SK_OVERRIDE {}; |
| 34 |
| 35 const char* name() const SK_OVERRIDE { return "Arithmetic"; } |
| 36 |
| 37 void getGLProcessorKey(const GrGLCaps& caps, GrProcessorKeyBuilder* b) const
SK_OVERRIDE; |
| 38 |
| 39 GrGLFragmentProcessor* createGLInstance() const SK_OVERRIDE; |
| 40 |
| 41 GrTexture* backgroundTexture() const { return fBackgroundAccess.getTexture()
; } |
| 42 |
| 43 float k1() const { return fK1; } |
| 44 float k2() const { return fK2; } |
| 45 float k3() const { return fK3; } |
| 46 float k4() const { return fK4; } |
| 47 bool enforcePMColor() const { return fEnforcePMColor; } |
| 48 |
| 49 private: |
| 50 bool onIsEqual(const GrFragmentProcessor&) const SK_OVERRIDE; |
| 51 |
| 52 void onComputeInvariantOutput(GrInvariantOutput* inout) const SK_OVERRIDE; |
| 53 |
| 54 GrArithmeticFP(float k1, float k2, float k3, float k4, bool enforcePMColor, |
| 55 GrTexture* background); |
| 56 |
| 57 float fK1, fK2, fK3, fK4; |
| 58 bool fEnforcePMColor; |
| 59 GrCoordTransform fBackgroundTransform; |
| 60 GrTextureAccess fBackgroundAccess; |
| 61 |
| 62 GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
| 63 typedef GrFragmentProcessor INHERITED; |
| 64 }; |
| 65 |
| 66 #endif |
| 67 #endif |
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