| /* |
| * Copyright 2018 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" |
| |
| #include "src/core/SkUtils.h" |
| #include "src/gpu/GrTexture.h" |
| #include "src/gpu/glsl/GrGLSLFragmentProcessor.h" |
| #include "src/gpu/glsl/GrGLSLFragmentShaderBuilder.h" |
| #include "src/gpu/glsl/GrGLSLProgramBuilder.h" |
| #include "src/sksl/SkSLCPP.h" |
| #include "src/sksl/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; |
| rectUniformVar = args.fUniformHandler->addUniform( |
| &_outer, kFragment_GrShaderFlag, kFloat4_GrSLType, "rectUniform"); |
| fragBuilder->codeAppendf( |
| R"SkSL(half coverage; |
| @switch (%d) { |
| case 0: |
| case 2: |
| coverage = half(all(greaterThan(float4(sk_FragCoord.xy, %s.zw), float4(%s.xy, sk_FragCoord.xy))) ? 1 : 0); |
| break; |
| default: |
| half4 dists4 = clamp(half4(1.0, 1.0, -1.0, -1.0) * half4(sk_FragCoord.xyxy - %s), 0.0, 1.0); |
| half2 dists2 = (dists4.xy + dists4.zw) - 1.0; |
| coverage = dists2.x * dists2.y; |
| } |
| @if (%d == 2 || %d == 3) { |
| coverage = 1.0 - coverage; |
| })SkSL", |
| (int)_outer.edgeType, |
| args.fUniformHandler->getUniformCStr(rectUniformVar), |
| args.fUniformHandler->getUniformCStr(rectUniformVar), |
| args.fUniformHandler->getUniformCStr(rectUniformVar), |
| (int)_outer.edgeType, |
| (int)_outer.edgeType); |
| SkString _sample0 = this->invokeChild(0, args); |
| fragBuilder->codeAppendf( |
| R"SkSL( |
| return %s * coverage; |
| )SkSL", |
| _sample0.c_str()); |
| } |
| |
| 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 = rectUniformVar; |
| (void)rectUniform; |
| |
| SkASSERT(rect.isSorted()); |
| // The AA math in the shader evaluates to 0 at the uploaded coordinates, so outset by 0.5 |
| // to interpolate from 0 at a half pixel inset and 1 at a half pixel outset of rect. |
| const SkRect& newRect = |
| GrProcessorEdgeTypeIsAA(edgeType) ? rect.makeOutset(.5f, .5f) : rect; |
| pdman.set4f(rectUniform, newRect.fLeft, newRect.fTop, newRect.fRight, newRect.fBottom); |
| } |
| UniformHandle rectUniformVar; |
| }; |
| std::unique_ptr<GrGLSLFragmentProcessor> GrAARectEffect::onMakeProgramImpl() const { |
| return std::make_unique<GrGLSLAARectEffect>(); |
| } |
| void GrAARectEffect::onGetGLSLProcessorKey(const GrShaderCaps& caps, |
| GrProcessorKeyBuilder* b) const { |
| b->addBits(2, (uint32_t)edgeType, "edgeType"); |
| } |
| bool GrAARectEffect::onIsEqual(const GrFragmentProcessor& other) const { |
| const GrAARectEffect& that = other.cast<GrAARectEffect>(); |
| (void)that; |
| if (edgeType != that.edgeType) return false; |
| if (rect != that.rect) return false; |
| return true; |
| } |
| GrAARectEffect::GrAARectEffect(const GrAARectEffect& src) |
| : INHERITED(kGrAARectEffect_ClassID, src.optimizationFlags()) |
| , edgeType(src.edgeType) |
| , rect(src.rect) { |
| this->cloneAndRegisterAllChildProcessors(src); |
| } |
| std::unique_ptr<GrFragmentProcessor> GrAARectEffect::clone() const { |
| return std::make_unique<GrAARectEffect>(*this); |
| } |
| #if GR_TEST_UTILS |
| SkString GrAARectEffect::onDumpInfo() const { |
| return SkStringPrintf("(edgeType=%d, rect=float4(%f, %f, %f, %f))", |
| (int)edgeType, |
| rect.left(), |
| rect.top(), |
| rect.right(), |
| rect.bottom()); |
| } |
| #endif |
| GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrAARectEffect); |
| #if GR_TEST_UTILS |
| std::unique_ptr<GrFragmentProcessor> GrAARectEffect::TestCreate(GrProcessorTestData* d) { |
| SkScalar l = d->fRandom->nextSScalar1(); |
| SkScalar t = d->fRandom->nextSScalar1(); |
| SkScalar r = d->fRandom->nextSScalar1(); |
| SkScalar b = d->fRandom->nextSScalar1(); |
| SkRect rect = SkRect::MakeLTRB(l, t, r, b); |
| rect.sort(); |
| GrClipEdgeType edgeType = |
| static_cast<GrClipEdgeType>(d->fRandom->nextULessThan(kGrClipEdgeTypeCnt)); |
| |
| return GrAARectEffect::Make(d->inputFP(), edgeType, rect); |
| } |
| #endif |