/* * 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 GrMagnifierEffect.fp; do not modify. **************************************************************************************************/ #include "GrMagnifierEffect.h" #include "glsl/GrGLSLFragmentProcessor.h" #include "glsl/GrGLSLFragmentShaderBuilder.h" #include "glsl/GrGLSLProgramBuilder.h" #include "GrTexture.h" #include "SkSLCPP.h" #include "SkSLUtil.h" class GrGLSLMagnifierEffect : public GrGLSLFragmentProcessor { public: GrGLSLMagnifierEffect() {} void emitCode(EmitArgs& args) override { GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder; const GrMagnifierEffect& _outer = args.fFp.cast(); (void)_outer; auto bounds = _outer.bounds(); (void)bounds; auto srcRect = _outer.srcRect(); (void)srcRect; auto xInvZoom = _outer.xInvZoom(); (void)xInvZoom; auto yInvZoom = _outer.yInvZoom(); (void)yInvZoom; auto xInvInset = _outer.xInvInset(); (void)xInvInset; auto yInvInset = _outer.yInvInset(); (void)yInvInset; fBoundsUniformVar = args.fUniformHandler->addUniform( kFragment_GrShaderFlag, kFloat4_GrSLType, kDefault_GrSLPrecision, "boundsUniform"); fXInvZoomVar = args.fUniformHandler->addUniform( kFragment_GrShaderFlag, kFloat_GrSLType, kDefault_GrSLPrecision, "xInvZoom"); fYInvZoomVar = args.fUniformHandler->addUniform( kFragment_GrShaderFlag, kFloat_GrSLType, kDefault_GrSLPrecision, "yInvZoom"); fXInvInsetVar = args.fUniformHandler->addUniform( kFragment_GrShaderFlag, kFloat_GrSLType, kDefault_GrSLPrecision, "xInvInset"); fYInvInsetVar = args.fUniformHandler->addUniform( kFragment_GrShaderFlag, kFloat_GrSLType, kDefault_GrSLPrecision, "yInvInset"); fOffsetVar = args.fUniformHandler->addUniform( kFragment_GrShaderFlag, kHalf2_GrSLType, kDefault_GrSLPrecision, "offset"); SkString sk_TransformedCoords2D_0 = fragBuilder->ensureCoords2D(args.fTransformedCoords[0]); fragBuilder->codeAppendf( "float2 coord = %s;\nfloat2 zoom_coord = float2(%s + half2(coord * " "float2(half2(half(%s), half(%s)))));\nfloat2 delta = (coord - %s.xy) * " "%s.zw;\ndelta = min(delta, float2(half2(1.0, 1.0) - half2(delta)));\ndelta *= " "float2(half2(half(%s), half(%s)));\nhalf weight = 0.0;\nif (delta.x < 2.0 && " "delta.y < 2.0) {\n delta = float2(half2(2.0, 2.0) - half2(delta));\n half " "dist = half(length(delta));\n dist = half(max(2.0 - float(dist), 0.0));\n " "weight = half(min(float(dist * dist), 1.0));\n} else {\n ", sk_TransformedCoords2D_0.c_str(), args.fUniformHandler->getUniformCStr(fOffsetVar), args.fUniformHandler->getUniformCStr(fXInvZoomVar), args.fUniformHandler->getUniformCStr(fYInvZoomVar), args.fUniformHandler->getUniformCStr(fBoundsUniformVar), args.fUniformHandler->getUniformCStr(fBoundsUniformVar), args.fUniformHandler->getUniformCStr(fXInvInsetVar), args.fUniformHandler->getUniformCStr(fYInvInsetVar)); fragBuilder->codeAppendf( "float2 delta_squared = delta * delta;\n weight = half(min(min(delta_squared.x, " "delta_squared.y), 1.0));\n}\n%s = texture(%s, mix(coord, zoom_coord, " "float(weight))).%s;\n", args.fOutputColor, fragBuilder->getProgramBuilder()->samplerVariable(args.fTexSamplers[0]).c_str(), fragBuilder->getProgramBuilder()->samplerSwizzle(args.fTexSamplers[0]).c_str()); } private: void onSetData(const GrGLSLProgramDataManager& pdman, const GrFragmentProcessor& _proc) override { const GrMagnifierEffect& _outer = _proc.cast(); { pdman.set1f(fXInvZoomVar, (_outer.xInvZoom())); pdman.set1f(fYInvZoomVar, (_outer.yInvZoom())); pdman.set1f(fXInvInsetVar, (_outer.xInvInset())); pdman.set1f(fYInvInsetVar, (_outer.yInvInset())); } GrSurfaceProxy& srcProxy = *_outer.textureSampler(0).proxy(); GrTexture& src = *srcProxy.peekTexture(); (void)src; auto bounds = _outer.bounds(); (void)bounds; UniformHandle& boundsUniform = fBoundsUniformVar; (void)boundsUniform; auto srcRect = _outer.srcRect(); (void)srcRect; UniformHandle& xInvZoom = fXInvZoomVar; (void)xInvZoom; UniformHandle& yInvZoom = fYInvZoomVar; (void)yInvZoom; UniformHandle& xInvInset = fXInvInsetVar; (void)xInvInset; UniformHandle& yInvInset = fYInvInsetVar; (void)yInvInset; UniformHandle& offset = fOffsetVar; (void)offset; SkScalar invW = 1.0f / src.width(); SkScalar invH = 1.0f / src.height(); { SkScalar y = srcRect.y() * invH; if (srcProxy.origin() != kTopLeft_GrSurfaceOrigin) { y = 1.0f - (srcRect.height() / bounds.height()) - y; } pdman.set2f(offset, srcRect.x() * invW, y); } { SkScalar y = bounds.y() * invH; if (srcProxy.origin() != kTopLeft_GrSurfaceOrigin) { y = 1.0f - bounds.height() * invH; } pdman.set4f(boundsUniform, bounds.x() * invW, y, SkIntToScalar(src.width()) / bounds.width(), SkIntToScalar(src.height()) / bounds.height()); } } UniformHandle fBoundsUniformVar; UniformHandle fOffsetVar; UniformHandle fXInvZoomVar; UniformHandle fYInvZoomVar; UniformHandle fXInvInsetVar; UniformHandle fYInvInsetVar; }; GrGLSLFragmentProcessor* GrMagnifierEffect::onCreateGLSLInstance() const { return new GrGLSLMagnifierEffect(); } void GrMagnifierEffect::onGetGLSLProcessorKey(const GrShaderCaps& caps, GrProcessorKeyBuilder* b) const {} bool GrMagnifierEffect::onIsEqual(const GrFragmentProcessor& other) const { const GrMagnifierEffect& that = other.cast(); (void)that; if (fSrc != that.fSrc) return false; if (fBounds != that.fBounds) return false; if (fSrcRect != that.fSrcRect) return false; if (fXInvZoom != that.fXInvZoom) return false; if (fYInvZoom != that.fYInvZoom) return false; if (fXInvInset != that.fXInvInset) return false; if (fYInvInset != that.fYInvInset) return false; return true; } GrMagnifierEffect::GrMagnifierEffect(const GrMagnifierEffect& src) : INHERITED(kGrMagnifierEffect_ClassID, src.optimizationFlags()) , fSrc(src.fSrc) , fBounds(src.fBounds) , fSrcRect(src.fSrcRect) , fXInvZoom(src.fXInvZoom) , fYInvZoom(src.fYInvZoom) , fXInvInset(src.fXInvInset) , fYInvInset(src.fYInvInset) , fSrcCoordTransform(src.fSrcCoordTransform) { this->setTextureSamplerCnt(1); this->addCoordTransform(&fSrcCoordTransform); } std::unique_ptr GrMagnifierEffect::clone() const { return std::unique_ptr(new GrMagnifierEffect(*this)); } const GrFragmentProcessor::TextureSampler& GrMagnifierEffect::onTextureSampler(int index) const { return IthTextureSampler(index, fSrc); } GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrMagnifierEffect); #if GR_TEST_UTILS std::unique_ptr GrMagnifierEffect::TestCreate(GrProcessorTestData* d) { sk_sp proxy = d->textureProxy(0); const int kMaxWidth = 200; const int kMaxHeight = 200; const SkScalar kMaxInset = 20.0f; uint32_t width = d->fRandom->nextULessThan(kMaxWidth); uint32_t height = d->fRandom->nextULessThan(kMaxHeight); SkScalar inset = d->fRandom->nextRangeScalar(1.0f, kMaxInset); SkIRect bounds = SkIRect::MakeWH(SkIntToScalar(kMaxWidth), SkIntToScalar(kMaxHeight)); SkRect srcRect = SkRect::MakeWH(SkIntToScalar(width), SkIntToScalar(height)); auto effect = GrMagnifierEffect::Make(std::move(proxy), bounds, srcRect, srcRect.width() / bounds.width(), srcRect.height() / bounds.height(), bounds.width() / inset, bounds.height() / inset); SkASSERT(effect); return effect; } #endif