1 /* 2 * Copyright 2018 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 GrAARectEffect.fp; do not modify. 10 **************************************************************************************************/ 11 #include "GrAARectEffect.h" 12 #include "glsl/GrGLSLFragmentProcessor.h" 13 #include "glsl/GrGLSLFragmentShaderBuilder.h" 14 #include "glsl/GrGLSLProgramBuilder.h" 15 #include "GrTexture.h" 16 #include "SkSLCPP.h" 17 #include "SkSLUtil.h" 18 class GrGLSLAARectEffect : public GrGLSLFragmentProcessor { 19 public: 20 GrGLSLAARectEffect() {} 21 void emitCode(EmitArgs& args) override { 22 GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder; 23 const GrAARectEffect& _outer = args.fFp.cast<GrAARectEffect>(); 24 (void)_outer; 25 auto edgeType = _outer.edgeType(); 26 (void)edgeType; 27 auto rect = _outer.rect(); 28 (void)rect; 29 prevRect = float4(-1.0); 30 fRectUniformVar = args.fUniformHandler->addUniform( 31 kFragment_GrShaderFlag, kFloat4_GrSLType, "rectUniform"); 32 fragBuilder->codeAppendf( 33 "float4 prevRect = float4(%f, %f, %f, %f);\nhalf alpha;\n@switch (%d) {\n case " 34 "0:\n case 2:\n alpha = half(all(greaterThan(float4(sk_FragCoord.xy, " 35 "%s.zw), float4(%s.xy, sk_FragCoord.xy))) ? 1 : 0);\n break;\n " 36 "default:\n half xSub, ySub;\n xSub = min(half(sk_FragCoord.x - " 37 "%s.x), 0.0);\n xSub += min(half(%s.z - sk_FragCoord.x), 0.0);\n " 38 "ySub = min(half(sk_FragCoord.y - %s.y), 0.0);\n ySub += min(half(%s.w - " 39 "sk_FragCoord.y), 0.0);\n alpha = (1.0 + ", 40 prevRect.left(), 41 prevRect.top(), 42 prevRect.right(), 43 prevRect.bottom(), 44 (int)_outer.edgeType(), 45 args.fUniformHandler->getUniformCStr(fRectUniformVar), 46 args.fUniformHandler->getUniformCStr(fRectUniformVar), 47 args.fUniformHandler->getUniformCStr(fRectUniformVar), 48 args.fUniformHandler->getUniformCStr(fRectUniformVar), 49 args.fUniformHandler->getUniformCStr(fRectUniformVar), 50 args.fUniformHandler->getUniformCStr(fRectUniformVar)); 51 fragBuilder->codeAppendf( 52 "max(xSub, -1.0)) * (1.0 + max(ySub, -1.0));\n}\n@if (%d == 2 || %d == 3) {\n " 53 "alpha = 1.0 - alpha;\n}\n%s = %s * alpha;\n", 54 (int)_outer.edgeType(), 55 (int)_outer.edgeType(), 56 args.fOutputColor, 57 args.fInputColor); 58 } 59 60 private: 61 void onSetData(const GrGLSLProgramDataManager& pdman, 62 const GrFragmentProcessor& _proc) override { 63 const GrAARectEffect& _outer = _proc.cast<GrAARectEffect>(); 64 auto edgeType = _outer.edgeType(); 65 (void)edgeType; 66 auto rect = _outer.rect(); 67 (void)rect; 68 UniformHandle& rectUniform = fRectUniformVar; 69 (void)rectUniform; 70 71 const SkRect& newRect = GrProcessorEdgeTypeIsAA(edgeType) ? rect.makeInset(.5f, .5f) : rect; 72 if (newRect != prevRect) { 73 pdman.set4f(rectUniform, newRect.fLeft, newRect.fTop, newRect.fRight, newRect.fBottom); 74 prevRect = newRect; 75 } 76 } 77 SkRect prevRect = float4(0); 78 UniformHandle fRectUniformVar; 79 }; 80 GrGLSLFragmentProcessor* GrAARectEffect::onCreateGLSLInstance() const { 81 return new GrGLSLAARectEffect(); 82 } 83 void GrAARectEffect::onGetGLSLProcessorKey(const GrShaderCaps& caps, 84 GrProcessorKeyBuilder* b) const { 85 b->add32((int32_t)fEdgeType); 86 } 87 bool GrAARectEffect::onIsEqual(const GrFragmentProcessor& other) const { 88 const GrAARectEffect& that = other.cast<GrAARectEffect>(); 89 (void)that; 90 if (fEdgeType != that.fEdgeType) return false; 91 if (fRect != that.fRect) return false; 92 return true; 93 } 94 GrAARectEffect::GrAARectEffect(const GrAARectEffect& src) 95 : INHERITED(kGrAARectEffect_ClassID, src.optimizationFlags()) 96 , fEdgeType(src.fEdgeType) 97 , fRect(src.fRect) {} 98 std::unique_ptr<GrFragmentProcessor> GrAARectEffect::clone() const { 99 return std::unique_ptr<GrFragmentProcessor>(new GrAARectEffect(*this)); 100 } 101 GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrAARectEffect); 102 #if GR_TEST_UTILS 103 std::unique_ptr<GrFragmentProcessor> GrAARectEffect::TestCreate(GrProcessorTestData* d) { 104 SkRect rect = SkRect::MakeLTRB(d->fRandom->nextSScalar1(), 105 d->fRandom->nextSScalar1(), 106 d->fRandom->nextSScalar1(), 107 d->fRandom->nextSScalar1()); 108 std::unique_ptr<GrFragmentProcessor> fp; 109 do { 110 GrClipEdgeType edgeType = 111 static_cast<GrClipEdgeType>(d->fRandom->nextULessThan(kGrClipEdgeTypeCnt)); 112 113 fp = GrAARectEffect::Make(edgeType, rect); 114 } while (nullptr == fp); 115 return fp; 116 } 117 #endif 118
