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
13#include "src/core/SkUtils.h"
14#include "src/gpu/GrTexture.h"
15#include "src/gpu/glsl/GrGLSLFragmentProcessor.h"
16#include "src/gpu/glsl/GrGLSLFragmentShaderBuilder.h"
17#include "src/gpu/glsl/GrGLSLProgramBuilder.h"
18#include "src/sksl/SkSLCPP.h"
19#include "src/sksl/SkSLUtil.h"
20class GrGLSLAARectEffect : public GrGLSLFragmentProcessor {
21public:
22 GrGLSLAARectEffect() {}
23 void emitCode(EmitArgs& args) override {
24 GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
25 const GrAARectEffect& _outer = args.fFp.cast<GrAARectEffect>();
26 (void)_outer;
27 auto edgeType = _outer.edgeType;
28 (void)edgeType;
29 auto rect = _outer.rect;
30 (void)rect;
31 prevRect = float4(-1.0);
32 rectUniformVar = args.fUniformHandler->addUniform(&_outer, kFragment_GrShaderFlag,
33 kFloat4_GrSLType, "rectUniform");
34 fragBuilder->codeAppendf(
35 R"SkSL(float4 prevRect = float4(%f, %f, %f, %f);
36half alpha;
37@switch (%d) {
38 case 0:
39 case 2:
40 alpha = half(all(greaterThan(float4(sk_FragCoord.xy, %s.zw), float4(%s.xy, sk_FragCoord.xy))) ? 1 : 0);
41 break;
42 default:
43 half xSub, ySub;
44 xSub = min(half(sk_FragCoord.x - %s.x), 0.0);
45 xSub += min(half(%s.z - sk_FragCoord.x), 0.0);
46 ySub = min(half(sk_FragCoord.y - %s.y), 0.0);
47 ySub += min(half(%s.w - sk_FragCoord.y), 0.0);
48 alpha = (1.0 + max(xSub, -1.0)) * (1.0 + max(ySub, -1.0));
49}
50@if (%d == 2 || %d == 3) {
51 alpha = 1.0 - alpha;
52})SkSL",
53 prevRect.left(), prevRect.top(), prevRect.right(), prevRect.bottom(),
54 (int)_outer.edgeType, args.fUniformHandler->getUniformCStr(rectUniformVar),
55 args.fUniformHandler->getUniformCStr(rectUniformVar),
56 args.fUniformHandler->getUniformCStr(rectUniformVar),
57 args.fUniformHandler->getUniformCStr(rectUniformVar),
58 args.fUniformHandler->getUniformCStr(rectUniformVar),
59 args.fUniformHandler->getUniformCStr(rectUniformVar), (int)_outer.edgeType,
60 (int)_outer.edgeType);
61 SkString _sample1678 = this->invokeChild(0, args);
62 fragBuilder->codeAppendf(
63 R"SkSL(
64half4 inputColor = %s;
65%s = inputColor * alpha;
66)SkSL",
67 _sample1678.c_str(), args.fOutputColor);
68 }
69
70private:
71 void onSetData(const GrGLSLProgramDataManager& pdman,
72 const GrFragmentProcessor& _proc) override {
73 const GrAARectEffect& _outer = _proc.cast<GrAARectEffect>();
74 auto edgeType = _outer.edgeType;
75 (void)edgeType;
76 auto rect = _outer.rect;
77 (void)rect;
78 UniformHandle& rectUniform = rectUniformVar;
79 (void)rectUniform;
80
81 const SkRect& newRect = GrProcessorEdgeTypeIsAA(edgeType) ? rect.makeInset(.5f, .5f) : rect;
82 if (newRect != prevRect) {
83 pdman.set4f(rectUniform, newRect.fLeft, newRect.fTop, newRect.fRight, newRect.fBottom);
84 prevRect = newRect;
85 }
86 }
87 SkRect prevRect = float4(0);
88 UniformHandle rectUniformVar;
89};
90GrGLSLFragmentProcessor* GrAARectEffect::onCreateGLSLInstance() const {
91 return new GrGLSLAARectEffect();
92}
93void GrAARectEffect::onGetGLSLProcessorKey(const GrShaderCaps& caps,
94 GrProcessorKeyBuilder* b) const {
95 b->add32((uint32_t)edgeType);
96}
97bool GrAARectEffect::onIsEqual(const GrFragmentProcessor& other) const {
98 const GrAARectEffect& that = other.cast<GrAARectEffect>();
99 (void)that;
100 if (edgeType != that.edgeType) return false;
101 if (rect != that.rect) return false;
102 return true;
103}
104GrAARectEffect::GrAARectEffect(const GrAARectEffect& src)
105 : INHERITED(kGrAARectEffect_ClassID, src.optimizationFlags())
106 , edgeType(src.edgeType)
107 , rect(src.rect) {
108 this->cloneAndRegisterAllChildProcessors(src);
109}
110std::unique_ptr<GrFragmentProcessor> GrAARectEffect::clone() const {
111 return std::make_unique<GrAARectEffect>(*this);
112}
113#if GR_TEST_UTILS
114SkString GrAARectEffect::onDumpInfo() const {
115 return SkStringPrintf("(edgeType=%d, rect=float4(%f, %f, %f, %f))", (int)edgeType, rect.left(),
116 rect.top(), rect.right(), rect.bottom());
117}
118#endif
119GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrAARectEffect);
120#if GR_TEST_UTILS
121std::unique_ptr<GrFragmentProcessor> GrAARectEffect::TestCreate(GrProcessorTestData* d) {
122 SkRect rect = SkRect::MakeLTRB(d->fRandom->nextSScalar1(),
123 d->fRandom->nextSScalar1(),
124 d->fRandom->nextSScalar1(),
125 d->fRandom->nextSScalar1());
126 GrClipEdgeType edgeType =
127 static_cast<GrClipEdgeType>(d->fRandom->nextULessThan(kGrClipEdgeTypeCnt));
128
129 return GrAARectEffect::Make(d->inputFP(), edgeType, rect);
130}
131#endif
132