1 /* 2 * Copyright 2017 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 /************************************************************************************************** 9 *** This file was autogenerated from GrEllipseEffect.fp; do not modify. 10 **************************************************************************************************/ 11 #ifndef GrEllipseEffect_DEFINED 12 #define GrEllipseEffect_DEFINED 13 #include "SkTypes.h" 14 15 #include "GrShaderCaps.h" 16 #include "GrFragmentProcessor.h" 17 #include "GrCoordTransform.h" 18 class GrEllipseEffect : public GrFragmentProcessor { 19 public: 20 const GrClipEdgeType& edgeType() const { return fEdgeType; } 21 const SkPoint& center() const { return fCenter; } 22 const SkPoint& radii() const { return fRadii; } 23 24 static std::unique_ptr<GrFragmentProcessor> Make(GrClipEdgeType edgeType, SkPoint center, 25 SkPoint radii, const GrShaderCaps& caps) { 26 // Small radii produce bad results on devices without full float. 27 if (!caps.floatIs32Bits() && (radii.fX < 0.5f || radii.fY < 0.5f)) { 28 return nullptr; 29 } 30 // Very narrow ellipses produce bad results on devices without full float 31 if (!caps.floatIs32Bits() && (radii.fX > 255 * radii.fY || radii.fY > 255 * radii.fX)) { 32 return nullptr; 33 } 34 // Very large ellipses produce bad results on devices without full float 35 if (!caps.floatIs32Bits() && (radii.fX > 16384 || radii.fY > 16384)) { 36 return nullptr; 37 } 38 return std::unique_ptr<GrFragmentProcessor>(new GrEllipseEffect(edgeType, center, radii)); 39 } 40 GrEllipseEffect(const GrEllipseEffect& src); 41 std::unique_ptr<GrFragmentProcessor> clone() const override; 42 const char* name() const override { return "EllipseEffect"; } 43 44 private: 45 GrEllipseEffect(GrClipEdgeType edgeType, SkPoint center, SkPoint radii) 46 : INHERITED(kGrEllipseEffect_ClassID, 47 (OptimizationFlags)kCompatibleWithCoverageAsAlpha_OptimizationFlag) 48 , fEdgeType(edgeType) 49 , fCenter(center) 50 , fRadii(radii) {} 51 GrGLSLFragmentProcessor* onCreateGLSLInstance() const override; 52 void onGetGLSLProcessorKey(const GrShaderCaps&, GrProcessorKeyBuilder*) const override; 53 bool onIsEqual(const GrFragmentProcessor&) const override; 54 GR_DECLARE_FRAGMENT_PROCESSOR_TEST 55 GrClipEdgeType fEdgeType; 56 SkPoint fCenter; 57 SkPoint fRadii; 58 typedef GrFragmentProcessor INHERITED; 59 }; 60 #endif 61
