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gerrit-public.fairphone.software / platform / external / skia / 2d5f9b3d58e07ac8a8df17f4c0321cb65f255e69 / . / src / gpu / effects / GrRectBlurEffect.cpp
blob: e656d848de97bbd33708c0f6cadd3d8959a5fd7b [file] [log] [blame]
Ethan Nicholas82399462017-10-16 12:35:44 -0400[diff] [blame]1/*
2 * Copyright 2017 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 GrRectBlurEffect.fp; do not modify.
10 */
11#include "GrRectBlurEffect.h"
12#if SK_SUPPORT_GPU
Ethan Nicholas82399462017-10-16 12:35:44 -0400[diff] [blame]13#include "glsl/GrGLSLFragmentProcessor.h"
14#include "glsl/GrGLSLFragmentShaderBuilder.h"
15#include "glsl/GrGLSLProgramBuilder.h"
Ethan Nicholas2d5f9b32017-12-13 14:36:14 -0500[diff] [blame^]16#include "GrTexture.h"
Ethan Nicholas82399462017-10-16 12:35:44 -0400[diff] [blame]17#include "SkSLCPP.h"
18#include "SkSLUtil.h"
19class GrGLSLRectBlurEffect : public GrGLSLFragmentProcessor {
20public:
21 GrGLSLRectBlurEffect() {}
22 void emitCode(EmitArgs& args) override {
23 GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
24 const GrRectBlurEffect& _outer = args.fFp.cast<GrRectBlurEffect>();
25 (void)_outer;
26 auto rect = _outer.rect();
27 (void)rect;
28 auto sigma = _outer.sigma();
29 (void)sigma;
30 highPrecision = ((((abs(rect.left()) > 16000.0 || abs(rect.top()) > 16000.0) ||
31 abs(rect.right()) > 16000.0) ||
32 abs(rect.bottom()) > 16000.0) ||
33 abs(rect.right() - rect.left()) > 16000.0) ||
34 abs(rect.bottom() - rect.top()) > 16000.0;
35 fRectVar = args.fUniformHandler->addUniform(kFragment_GrShaderFlag, kFloat4_GrSLType,
36 kDefault_GrSLPrecision, "rect");
37 if (!highPrecision) {
38 fProxyRectHalfVar =
39 args.fUniformHandler->addUniform(kFragment_GrShaderFlag, kHalf4_GrSLType,
40 kDefault_GrSLPrecision, "proxyRectHalf");
41 }
42 if (highPrecision) {
43 fProxyRectFloatVar =
44 args.fUniformHandler->addUniform(kFragment_GrShaderFlag, kFloat4_GrSLType,
45 kDefault_GrSLPrecision, "proxyRectFloat");
46 }
47 fProfileSizeVar = args.fUniformHandler->addUniform(kFragment_GrShaderFlag, kHalf_GrSLType,
48 kDefault_GrSLPrecision, "profileSize");
49 fragBuilder->codeAppendf(
50 "bool highPrecision = %s;\n@if (highPrecision) {\n float2 translatedPos = "
51 "sk_FragCoord.xy - %s.xy;\n float width = %s.z - %s.x;\n float height = %s.w "
52 "- %s.y;\n float2 smallDims = float2(width - float(%s), height - float(%s));\n "
53 " float center = 2.0 * floor(float(float(%s / 2.0) + 0.25)) - 1.0;\n float2 wh "
54 "= smallDims - float2(center, center);\n half hcoord = "
55 "half((abs(translatedPos.x - 0.5 * width) - 0.5 * wh.x) / float(%s));\n half "
56 "hlookup = texture(%s, float2(float(hcoord), 0.5)).%s.w",
57 (highPrecision ? "true" : "false"), args.fUniformHandler->getUniformCStr(fRectVar),
58 args.fUniformHandler->getUniformCStr(fRectVar),
59 args.fUniformHandler->getUniformCStr(fRectVar),
60 args.fUniformHandler->getUniformCStr(fRectVar),
61 args.fUniformHandler->getUniformCStr(fRectVar),
62 args.fUniformHandler->getUniformCStr(fProfileSizeVar),
63 args.fUniformHandler->getUniformCStr(fProfileSizeVar),
64 args.fUniformHandler->getUniformCStr(fProfileSizeVar),
65 args.fUniformHandler->getUniformCStr(fProfileSizeVar),
66 fragBuilder->getProgramBuilder()->samplerVariable(args.fTexSamplers[0]).c_str(),
67 fragBuilder->getProgramBuilder()->samplerSwizzle(args.fTexSamplers[0]).c_str());
68 fragBuilder->codeAppendf(
69 ";\n half vcoord = half((abs(translatedPos.y - 0.5 * height) - 0.5 * wh.y) / "
70 "float(%s));\n half vlookup = texture(%s, float2(float(vcoord), 0.5)).%s.w;\n "
71 " %s = (%s * hlookup) * vlookup;\n} else {\n half2 translatedPos = "
72 "half2(sk_FragCoord.xy - %s.xy);\n half width = half(%s.z - %s.x);\n half "
73 "height = half(%s.w - %s.y);\n half2 smallDims = half2(width - %s, height - "
74 "%s);\n half center = half(2.0 * floor(float(float(%s / 2.0) + 0.25)) - 1.0);\n "
75 " half2 wh = smallDims - half2(float2(floa",
76 args.fUniformHandler->getUniformCStr(fProfileSizeVar),
77 fragBuilder->getProgramBuilder()->samplerVariable(args.fTexSamplers[0]).c_str(),
78 fragBuilder->getProgramBuilder()->samplerSwizzle(args.fTexSamplers[0]).c_str(),
79 args.fOutputColor, args.fInputColor ? args.fInputColor : "half4(1)",
80 args.fUniformHandler->getUniformCStr(fRectVar),
81 args.fUniformHandler->getUniformCStr(fRectVar),
82 args.fUniformHandler->getUniformCStr(fRectVar),
83 args.fUniformHandler->getUniformCStr(fRectVar),
84 args.fUniformHandler->getUniformCStr(fRectVar),
85 args.fUniformHandler->getUniformCStr(fProfileSizeVar),
86 args.fUniformHandler->getUniformCStr(fProfileSizeVar),
87 args.fUniformHandler->getUniformCStr(fProfileSizeVar));
88 fragBuilder->codeAppendf(
89 "t(center), float(center)));\n half hcoord = "
90 "half((abs(float(float(translatedPos.x) - 0.5 * float(width))) - 0.5 * "
91 "float(wh.x)) / float(%s));\n half hlookup = texture(%s, float2(float(hcoord), "
92 "0.5)).%s.w;\n half vcoord = half((abs(float(float(translatedPos.y) - 0.5 * "
93 "float(height))) - 0.5 * float(wh.y)) / float(%s));\n half vlookup = "
94 "texture(%s, float2(float(vcoord), 0.5)).%s.w;\n %s = (%s * hlookup) * "
95 "vlookup;\n}\n",
96 args.fUniformHandler->getUniformCStr(fProfileSizeVar),
97 fragBuilder->getProgramBuilder()->samplerVariable(args.fTexSamplers[0]).c_str(),
98 fragBuilder->getProgramBuilder()->samplerSwizzle(args.fTexSamplers[0]).c_str(),
99 args.fUniformHandler->getUniformCStr(fProfileSizeVar),
100 fragBuilder->getProgramBuilder()->samplerVariable(args.fTexSamplers[0]).c_str(),
101 fragBuilder->getProgramBuilder()->samplerSwizzle(args.fTexSamplers[0]).c_str(),
102 args.fOutputColor, args.fInputColor ? args.fInputColor : "half4(1)");
103 }
104
105private:
106 void onSetData(const GrGLSLProgramDataManager& pdman,
107 const GrFragmentProcessor& _proc) override {
108 const GrRectBlurEffect& _outer = _proc.cast<GrRectBlurEffect>();
109 {
110 const SkRect rectValue = _outer.rect();
111 pdman.set4fv(fRectVar, 1, (float*)&rectValue);
112 }
113 UniformHandle& rect = fRectVar;
114 (void)rect;
115 auto sigma = _outer.sigma();
116 (void)sigma;
Ethan Nicholas2d5f9b32017-12-13 14:36:14 -0500[diff] [blame^]117 GrSurfaceProxy& blurProfileProxy = *_outer.textureSampler(0).proxy();
118 GrTexture& blurProfile = *blurProfileProxy.priv().peekTexture();
Ethan Nicholas82399462017-10-16 12:35:44 -0400[diff] [blame]119 (void)blurProfile;
120 UniformHandle& proxyRectHalf = fProxyRectHalfVar;
121 (void)proxyRectHalf;
122 UniformHandle& proxyRectFloat = fProxyRectFloatVar;
123 (void)proxyRectFloat;
124 UniformHandle& profileSize = fProfileSizeVar;
125 (void)profileSize;
126
127 pdman.set1f(profileSize, SkScalarCeilToScalar(6 * sigma));
128 }
Ethan Nicholase9d172a2017-11-20 12:12:24 -0500[diff] [blame]129 bool highPrecision = false;
Ethan Nicholas82399462017-10-16 12:35:44 -0400[diff] [blame]130 UniformHandle fProxyRectHalfVar;
131 UniformHandle fProxyRectFloatVar;
132 UniformHandle fProfileSizeVar;
133 UniformHandle fRectVar;
134 UniformHandle fBlurProfileVar;
135};
136GrGLSLFragmentProcessor* GrRectBlurEffect::onCreateGLSLInstance() const {
137 return new GrGLSLRectBlurEffect();
138}
139void GrRectBlurEffect::onGetGLSLProcessorKey(const GrShaderCaps& caps,
140 GrProcessorKeyBuilder* b) const {}
141bool GrRectBlurEffect::onIsEqual(const GrFragmentProcessor& other) const {
142 const GrRectBlurEffect& that = other.cast<GrRectBlurEffect>();
143 (void)that;
144 if (fRect != that.fRect) return false;
145 if (fSigma != that.fSigma) return false;
146 if (fBlurProfile != that.fBlurProfile) return false;
147 return true;
148}
149GrRectBlurEffect::GrRectBlurEffect(const GrRectBlurEffect& src)
150 : INHERITED(kGrRectBlurEffect_ClassID, src.optimizationFlags())
151 , fRect(src.fRect)
152 , fSigma(src.fSigma)
153 , fBlurProfile(src.fBlurProfile) {
154 this->addTextureSampler(&fBlurProfile);
155}
156std::unique_ptr<GrFragmentProcessor> GrRectBlurEffect::clone() const {
157 return std::unique_ptr<GrFragmentProcessor>(new GrRectBlurEffect(*this));
158}
159GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrRectBlurEffect);
160#if GR_TEST_UTILS
161std::unique_ptr<GrFragmentProcessor> GrRectBlurEffect::TestCreate(GrProcessorTestData* data) {
162 float sigma = data->fRandom->nextRangeF(3, 8);
163 float width = data->fRandom->nextRangeF(200, 300);
164 float height = data->fRandom->nextRangeF(200, 300);
165 return GrRectBlurEffect::Make(data->resourceProvider(), SkRect::MakeWH(width, height), sigma);
166}
167#endif
168#endif