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 #if SK_SUPPORT_GPU 13 #include "glsl/GrGLSLFragmentProcessor.h" 14 #include "glsl/GrGLSLFragmentShaderBuilder.h" 15 #include "glsl/GrGLSLProgramBuilder.h" 16 #include "GrTexture.h" 17 #include "SkSLCPP.h" 18 #include "SkSLUtil.h" 19 class GrGLSLAARectEffect : public GrGLSLFragmentProcessor { 20 public: 21 GrGLSLAARectEffect() {} 22 void emitCode(EmitArgs& args) override { 23 GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder; 24 const GrAARectEffect& _outer = args.fFp.cast<GrAARectEffect>(); 25 (void)_outer; 26 auto edgeType = _outer.edgeType(); 27 (void)edgeType; 28 auto rect = _outer.rect(); 29 (void)rect; 30 prevRect = float4(-1.0); 31 fRectUniformVar = args.fUniformHandler->addUniform( 32 kFragment_GrShaderFlag, kFloat4_GrSLType, kDefault_GrSLPrecision, "rectUniform"); 33 fragBuilder->codeAppendf( 34 "float4 prevRect = float4(%f, %f, %f, %f);\nhalf alpha;\n@switch (%d) {\n case " 35 "0:\n case 2:\n alpha = half(all(greaterThan(float4(sk_FragCoord.xy, " 36 "%s.zw), float4(%s.xy, sk_FragCoord.xy))) ? 1 : 0);\n break;\n " 37 "default:\n half xSub, ySub;\n xSub = half(min(sk_FragCoord.x - " 38 "%s.x, 0.0));\n xSub += half(min(%s.z - sk_FragCoord.x, 0.0));\n " 39 "ySub = half(min(sk_FragCoord.y - %s.y, 0.0));\n ySub += half(min(%s.w - " 40 "sk_FragCoord.y, 0.0));\n alpha = half((1", 41 prevRect.left(), 42 prevRect.top(), 43 prevRect.right(), 44 prevRect.bottom(), 45 (int)_outer.edgeType(), 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 args.fUniformHandler->getUniformCStr(fRectUniformVar)); 52 fragBuilder->codeAppendf( 53 ".0 + max(float(xSub), -1.0)) * (1.0 + max(float(ySub), -1.0)));\n}\n@if (%d == 2 " 54 "|| %d == 3) {\n alpha = half(1.0 - float(alpha));\n}\n%s = %s * alpha;\n", 55 (int)_outer.edgeType(), 56 (int)_outer.edgeType(), 57 args.fOutputColor, 58 args.fInputColor ? args.fInputColor : "half4(1)"); 59 } 60 61 private: 62 void onSetData(const GrGLSLProgramDataManager& pdman, 63 const GrFragmentProcessor& _proc) override { 64 const GrAARectEffect& _outer = _proc.cast<GrAARectEffect>(); 65 auto edgeType = _outer.edgeType(); 66 (void)edgeType; 67 auto rect = _outer.rect(); 68 (void)rect; 69 UniformHandle& rectUniform = fRectUniformVar; 70 (void)rectUniform; 71 72 const SkRect& newRect = GrProcessorEdgeTypeIsAA(edgeType) ? rect.makeInset(.5f, .5f) : rect; 73 if (newRect != prevRect) { 74 pdman.set4f(rectUniform, newRect.fLeft, newRect.fTop, newRect.fRight, newRect.fBottom); 75 prevRect = newRect; 76 } 77 } 78 SkRect prevRect = float4(0); 79 UniformHandle fRectUniformVar; 80 }; 81 GrGLSLFragmentProcessor* GrAARectEffect::onCreateGLSLInstance() const { 82 return new GrGLSLAARectEffect(); 83 } 84 void GrAARectEffect::onGetGLSLProcessorKey(const GrShaderCaps& caps, 85 GrProcessorKeyBuilder* b) const { 86 b->add32((int32_t)fEdgeType); 87 } 88 bool GrAARectEffect::onIsEqual(const GrFragmentProcessor& other) const { 89 const GrAARectEffect& that = other.cast<GrAARectEffect>(); 90 (void)that; 91 if (fEdgeType != that.fEdgeType) return false; 92 if (fRect != that.fRect) return false; 93 return true; 94 } 95 GrAARectEffect::GrAARectEffect(const GrAARectEffect& src) 96 : INHERITED(kGrAARectEffect_ClassID, src.optimizationFlags()) 97 , fEdgeType(src.fEdgeType) 98 , fRect(src.fRect) {} 99 std::unique_ptr<GrFragmentProcessor> GrAARectEffect::clone() const { 100 return std::unique_ptr<GrFragmentProcessor>(new GrAARectEffect(*this)); 101 } 102 GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrAARectEffect); 103 #if GR_TEST_UTILS 104 std::unique_ptr<GrFragmentProcessor> GrAARectEffect::TestCreate(GrProcessorTestData* d) { 105 SkRect rect = SkRect::MakeLTRB(d->fRandom->nextSScalar1(), 106 d->fRandom->nextSScalar1(), 107 d->fRandom->nextSScalar1(), 108 d->fRandom->nextSScalar1()); 109 std::unique_ptr<GrFragmentProcessor> fp; 110 do { 111 GrClipEdgeType edgeType = 112 static_cast<GrClipEdgeType>(d->fRandom->nextULessThan(kGrClipEdgeTypeCnt)); 113 114 fp = GrAARectEffect::Make(edgeType, rect); 115 } while (nullptr == fp); 116 return fp; 117 } 118 #endif 119 #endif 120
