| /* |
| * 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 GrRectBlurEffect.fp; do not modify. |
| **************************************************************************************************/ |
| #include "GrRectBlurEffect.h" |
| |
| #include "include/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 GrGLSLRectBlurEffect : public GrGLSLFragmentProcessor { |
| public: |
| GrGLSLRectBlurEffect() {} |
| void emitCode(EmitArgs& args) override { |
| GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder; |
| const GrRectBlurEffect& _outer = args.fFp.cast<GrRectBlurEffect>(); |
| (void)_outer; |
| auto rect = _outer.rect; |
| (void)rect; |
| auto sigma = _outer.sigma; |
| (void)sigma; |
| highp = ((abs(rect.left()) > 16000.0 || abs(rect.top()) > 16000.0) || |
| abs(rect.right()) > 16000.0) || |
| abs(rect.bottom()) > 16000.0; |
| if (highp) { |
| rectFVar = args.fUniformHandler->addUniform(kFragment_GrShaderFlag, kFloat4_GrSLType, |
| "rectF"); |
| } |
| if (!highp) { |
| rectHVar = args.fUniformHandler->addUniform(kFragment_GrShaderFlag, kHalf4_GrSLType, |
| "rectH"); |
| } |
| sigmaVar = |
| args.fUniformHandler->addUniform(kFragment_GrShaderFlag, kHalf_GrSLType, "sigma"); |
| fragBuilder->codeAppendf( |
| "/* key */ bool highp = %s;\nhalf invr = 1.0 / (2.0 * %s);\nhalf x;\n@if (highp) " |
| "{\n float lDiff = %s.x - sk_FragCoord.x;\n float rDiff = sk_FragCoord.x - " |
| "%s.z;\n x = half(max(lDiff, rDiff) * float(invr));\n} else {\n half lDiff = " |
| "half(float(%s.x) - sk_FragCoord.x);\n half rDiff = half(sk_FragCoord.x - " |
| "float(%s.z));\n x = max(lDiff, rDiff) * invr;\n}\nhalf xCoverage;\nif (x > " |
| "1.5) {\n xCoverage = 0.0;\n} else if (x < -1.5) {\n xCoverage = 1.0;\n} " |
| "else {\n half x2 = x * x;\n half", |
| (highp ? "true" : "false"), args.fUniformHandler->getUniformCStr(sigmaVar), |
| rectFVar.isValid() ? args.fUniformHandler->getUniformCStr(rectFVar) : "float4(0)", |
| rectFVar.isValid() ? args.fUniformHandler->getUniformCStr(rectFVar) : "float4(0)", |
| rectHVar.isValid() ? args.fUniformHandler->getUniformCStr(rectHVar) : "half4(0)", |
| rectHVar.isValid() ? args.fUniformHandler->getUniformCStr(rectHVar) : "half4(0)"); |
| fragBuilder->codeAppendf( |
| " x3 = x2 * x;\n if (x > 0.5) {\n xCoverage = 0.5625 - ((x3 / 6.0 - (3.0 " |
| "* x2) * 0.25) + 1.125 * x);\n } else if (x > -0.5) {\n xCoverage = 0.5 " |
| "- (0.75 * x - x3 / 3.0);\n } else {\n xCoverage = 0.4375 + ((-x3 / 6.0 " |
| "- (3.0 * x2) * 0.25) - 1.125 * x);\n }\n}\nhalf y;\n@if (highp) {\n float " |
| "tDiff = %s.y - sk_FragCoord.y;\n float bDiff = sk_FragCoord.y - %s.w;\n y = " |
| "half(max(tDiff, bDiff) * float(invr));\n} else {\n half tDiff = " |
| "half(float(%s.y) - sk_FragCoord.y);\n ", |
| rectFVar.isValid() ? args.fUniformHandler->getUniformCStr(rectFVar) : "float4(0)", |
| rectFVar.isValid() ? args.fUniformHandler->getUniformCStr(rectFVar) : "float4(0)", |
| rectHVar.isValid() ? args.fUniformHandler->getUniformCStr(rectHVar) : "half4(0)"); |
| fragBuilder->codeAppendf( |
| " half bDiff = half(sk_FragCoord.y - float(%s.w));\n y = max(tDiff, bDiff) * " |
| "invr;\n}\nhalf yCoverage;\nif (y > 1.5) {\n yCoverage = 0.0;\n} else if (y < " |
| "-1.5) {\n yCoverage = 1.0;\n} else {\n half y2 = y * y;\n half y3 = y2 * " |
| "y;\n if (y > 0.5) {\n yCoverage = 0.5625 - ((y3 / 6.0 - (3.0 * y2) * " |
| "0.25) + 1.125 * y);\n } else if (y > -0.5) {\n yCoverage = 0.5 - (0.75 " |
| "* y - y3 / 3.0);\n } else {\n yCoverage = 0.4375 + ((-y3 / 6.0 - (3.0 * " |
| "y2) * 0.25) - 1.125 * y);\n ", |
| rectHVar.isValid() ? args.fUniformHandler->getUniformCStr(rectHVar) : "half4(0)"); |
| fragBuilder->codeAppendf(" }\n}\n%s = (%s * xCoverage) * yCoverage;\n", args.fOutputColor, |
| args.fInputColor); |
| } |
| |
| private: |
| void onSetData(const GrGLSLProgramDataManager& pdman, |
| const GrFragmentProcessor& _proc) override { |
| const GrRectBlurEffect& _outer = _proc.cast<GrRectBlurEffect>(); |
| { pdman.set1f(sigmaVar, (_outer.sigma)); } |
| auto rect = _outer.rect; |
| (void)rect; |
| UniformHandle& rectF = rectFVar; |
| (void)rectF; |
| UniformHandle& rectH = rectHVar; |
| (void)rectH; |
| UniformHandle& sigma = sigmaVar; |
| (void)sigma; |
| |
| float r[]{rect.fLeft, rect.fTop, rect.fRight, rect.fBottom}; |
| pdman.set4fv(highp ? rectF : rectH, 1, r); |
| } |
| bool highp = false; |
| UniformHandle rectFVar; |
| UniformHandle rectHVar; |
| UniformHandle sigmaVar; |
| }; |
| GrGLSLFragmentProcessor* GrRectBlurEffect::onCreateGLSLInstance() const { |
| return new GrGLSLRectBlurEffect(); |
| } |
| void GrRectBlurEffect::onGetGLSLProcessorKey(const GrShaderCaps& caps, |
| GrProcessorKeyBuilder* b) const { |
| bool highp = ((abs(rect.left()) > 16000.0 || abs(rect.top()) > 16000.0) || |
| abs(rect.right()) > 16000.0) || |
| abs(rect.bottom()) > 16000.0; |
| b->add32((int32_t)highp); |
| } |
| bool GrRectBlurEffect::onIsEqual(const GrFragmentProcessor& other) const { |
| const GrRectBlurEffect& that = other.cast<GrRectBlurEffect>(); |
| (void)that; |
| if (rect != that.rect) return false; |
| if (sigma != that.sigma) return false; |
| return true; |
| } |
| GrRectBlurEffect::GrRectBlurEffect(const GrRectBlurEffect& src) |
| : INHERITED(kGrRectBlurEffect_ClassID, src.optimizationFlags()) |
| , rect(src.rect) |
| , sigma(src.sigma) {} |
| std::unique_ptr<GrFragmentProcessor> GrRectBlurEffect::clone() const { |
| return std::unique_ptr<GrFragmentProcessor>(new GrRectBlurEffect(*this)); |
| } |
| GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrRectBlurEffect); |
| #if GR_TEST_UTILS |
| std::unique_ptr<GrFragmentProcessor> GrRectBlurEffect::TestCreate(GrProcessorTestData* data) { |
| float sigma = data->fRandom->nextRangeF(3, 8); |
| float width = data->fRandom->nextRangeF(200, 300); |
| float height = data->fRandom->nextRangeF(200, 300); |
| return GrRectBlurEffect::Make(data->proxyProvider(), *data->caps()->shaderCaps(), |
| SkRect::MakeWH(width, height), sigma); |
| } |
| #endif |
