| /* |
| * Copyright 2017 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| /* |
| * This file was autogenerated from GrAARectEffect.fp; do not modify. |
| */ |
| #include "GrAARectEffect.h" |
| #if SK_SUPPORT_GPU |
| #include "glsl/GrGLSLFragmentProcessor.h" |
| #include "glsl/GrGLSLFragmentShaderBuilder.h" |
| #include "glsl/GrGLSLProgramBuilder.h" |
| #include "GrTexture.h" |
| #include "SkSLCPP.h" |
| #include "SkSLUtil.h" |
| class GrGLSLAARectEffect : public GrGLSLFragmentProcessor { |
| public: |
| GrGLSLAARectEffect() {} |
| void emitCode(EmitArgs& args) override { |
| GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder; |
| const GrAARectEffect& _outer = args.fFp.cast<GrAARectEffect>(); |
| (void)_outer; |
| auto edgeType = _outer.edgeType(); |
| (void)edgeType; |
| auto rect = _outer.rect(); |
| (void)rect; |
| prevRect = float4(-1.0); |
| fRectUniformVar = args.fUniformHandler->addUniform( |
| kFragment_GrShaderFlag, kFloat4_GrSLType, kDefault_GrSLPrecision, "rectUniform"); |
| fragBuilder->codeAppendf( |
| "float4 prevRect = float4(%f, %f, %f, %f);\nhalf alpha;\n@switch (%d) {\n case " |
| "0:\n case 2:\n alpha = half(all(greaterThan(float4(sk_FragCoord.xy, " |
| "%s.zw), float4(%s.xy, sk_FragCoord.xy))) ? 1 : 0);\n break;\n " |
| "default:\n half xSub, ySub;\n xSub = half(min(sk_FragCoord.x - " |
| "%s.x, 0.0));\n xSub += half(min(%s.z - sk_FragCoord.x, 0.0));\n " |
| "ySub = half(min(sk_FragCoord.y - %s.y, 0.0));\n ySub += half(min(%s.w - " |
| "sk_FragCoord.y, 0.0));\n alpha = half((1", |
| prevRect.left(), |
| prevRect.top(), |
| prevRect.right(), |
| prevRect.bottom(), |
| (int)_outer.edgeType(), |
| args.fUniformHandler->getUniformCStr(fRectUniformVar), |
| args.fUniformHandler->getUniformCStr(fRectUniformVar), |
| args.fUniformHandler->getUniformCStr(fRectUniformVar), |
| args.fUniformHandler->getUniformCStr(fRectUniformVar), |
| args.fUniformHandler->getUniformCStr(fRectUniformVar), |
| args.fUniformHandler->getUniformCStr(fRectUniformVar)); |
| fragBuilder->codeAppendf( |
| ".0 + max(float(xSub), -1.0)) * (1.0 + max(float(ySub), -1.0)));\n}\n@if (%d == 2 " |
| "|| %d == 3) {\n alpha = half(1.0 - float(alpha));\n}\n%s = %s * alpha;\n", |
| (int)_outer.edgeType(), |
| (int)_outer.edgeType(), |
| args.fOutputColor, |
| args.fInputColor ? args.fInputColor : "half4(1)"); |
| } |
| |
| private: |
| void onSetData(const GrGLSLProgramDataManager& pdman, |
| const GrFragmentProcessor& _proc) override { |
| const GrAARectEffect& _outer = _proc.cast<GrAARectEffect>(); |
| auto edgeType = _outer.edgeType(); |
| (void)edgeType; |
| auto rect = _outer.rect(); |
| (void)rect; |
| UniformHandle& rectUniform = fRectUniformVar; |
| (void)rectUniform; |
| |
| const SkRect& newRect = GrProcessorEdgeTypeIsAA(edgeType) ? rect.makeInset(.5f, .5f) : rect; |
| if (newRect != prevRect) { |
| pdman.set4f(rectUniform, newRect.fLeft, newRect.fTop, newRect.fRight, newRect.fBottom); |
| prevRect = newRect; |
| } |
| } |
| SkRect prevRect = float4(0); |
| UniformHandle fRectUniformVar; |
| }; |
| GrGLSLFragmentProcessor* GrAARectEffect::onCreateGLSLInstance() const { |
| return new GrGLSLAARectEffect(); |
| } |
| void GrAARectEffect::onGetGLSLProcessorKey(const GrShaderCaps& caps, |
| GrProcessorKeyBuilder* b) const { |
| b->add32((int32_t)fEdgeType); |
| } |
| bool GrAARectEffect::onIsEqual(const GrFragmentProcessor& other) const { |
| const GrAARectEffect& that = other.cast<GrAARectEffect>(); |
| (void)that; |
| if (fEdgeType != that.fEdgeType) return false; |
| if (fRect != that.fRect) return false; |
| return true; |
| } |
| GrAARectEffect::GrAARectEffect(const GrAARectEffect& src) |
| : INHERITED(kGrAARectEffect_ClassID, src.optimizationFlags()) |
| , fEdgeType(src.fEdgeType) |
| , fRect(src.fRect) {} |
| std::unique_ptr<GrFragmentProcessor> GrAARectEffect::clone() const { |
| return std::unique_ptr<GrFragmentProcessor>(new GrAARectEffect(*this)); |
| } |
| GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrAARectEffect); |
| #if GR_TEST_UTILS |
| std::unique_ptr<GrFragmentProcessor> GrAARectEffect::TestCreate(GrProcessorTestData* d) { |
| SkRect rect = SkRect::MakeLTRB(d->fRandom->nextSScalar1(), |
| d->fRandom->nextSScalar1(), |
| d->fRandom->nextSScalar1(), |
| d->fRandom->nextSScalar1()); |
| std::unique_ptr<GrFragmentProcessor> fp; |
| do { |
| GrClipEdgeType edgeType = |
| static_cast<GrClipEdgeType>(d->fRandom->nextULessThan(kGrClipEdgeTypeCnt)); |
| |
| fp = GrAARectEffect::Make(edgeType, rect); |
| } while (nullptr == fp); |
| return fp; |
| } |
| #endif |
| #endif |