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/gpu/GrTexture.h" |
14 | #include "src/gpu/glsl/GrGLSLFragmentProcessor.h" |
15 | #include "src/gpu/glsl/GrGLSLFragmentShaderBuilder.h" |
16 | #include "src/gpu/glsl/GrGLSLProgramBuilder.h" |
17 | #include "src/sksl/SkSLCPP.h" |
18 | #include "src/sksl/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 | rectUniformVar = args.fUniformHandler->addUniform( |
32 | &_outer, kFragment_GrShaderFlag, kFloat4_GrSLType, "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 = min(half(sk_FragCoord.x - " |
38 | "%s.x), 0.0);\n xSub += min(half(%s.z - sk_FragCoord.x), 0.0);\n " |
39 | "ySub = min(half(sk_FragCoord.y - %s.y), 0.0);\n ySub += min(half(%s.w - " |
40 | "sk_FragCoord.y), 0.0);\n alpha = (1.0 + " , |
41 | prevRect.left(), |
42 | prevRect.top(), |
43 | prevRect.right(), |
44 | prevRect.bottom(), |
45 | (int)_outer.edgeType, |
46 | args.fUniformHandler->getUniformCStr(rectUniformVar), |
47 | args.fUniformHandler->getUniformCStr(rectUniformVar), |
48 | args.fUniformHandler->getUniformCStr(rectUniformVar), |
49 | args.fUniformHandler->getUniformCStr(rectUniformVar), |
50 | args.fUniformHandler->getUniformCStr(rectUniformVar), |
51 | args.fUniformHandler->getUniformCStr(rectUniformVar)); |
52 | fragBuilder->codeAppendf( |
53 | "max(xSub, -1.0)) * (1.0 + max(ySub, -1.0));\n}\n@if (%d == 2 || %d == 3) {\n " |
54 | "alpha = 1.0 - alpha;\n}\n%s = %s * alpha;\n" , |
55 | (int)_outer.edgeType, |
56 | (int)_outer.edgeType, |
57 | args.fOutputColor, |
58 | args.fInputColor); |
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 = rectUniformVar; |
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 rectUniformVar; |
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)edgeType); |
87 | } |
88 | bool GrAARectEffect::onIsEqual(const GrFragmentProcessor& other) const { |
89 | const GrAARectEffect& that = other.cast<GrAARectEffect>(); |
90 | (void)that; |
91 | if (edgeType != that.edgeType) return false; |
92 | if (rect != that.rect) return false; |
93 | return true; |
94 | } |
95 | GrAARectEffect::GrAARectEffect(const GrAARectEffect& src) |
96 | : INHERITED(kGrAARectEffect_ClassID, src.optimizationFlags()) |
97 | , edgeType(src.edgeType) |
98 | , rect(src.rect) {} |
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 | |