| /* |
| * Copyright 2017 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 GrRRectBlurEffect.fp; do not modify. |
| */ |
| #ifndef GrRRectBlurEffect_DEFINED |
| #define GrRRectBlurEffect_DEFINED |
| #include "SkTypes.h" |
| #if SK_SUPPORT_GPU |
| |
| #include "GrClip.h" |
| #include "GrContext.h" |
| #include "GrContextPriv.h" |
| #include "GrPaint.h" |
| #include "GrProxyProvider.h" |
| #include "GrRenderTargetContext.h" |
| #include "GrStyle.h" |
| #include "SkBlurMaskFilter.h" |
| #include "SkGpuBlurUtils.h" |
| #include "GrFragmentProcessor.h" |
| #include "GrCoordTransform.h" |
| class GrRRectBlurEffect : public GrFragmentProcessor { |
| public: |
| static sk_sp<GrTextureProxy> find_or_create_rrect_blur_mask(GrContext* context, |
| const SkRRect& rrectToDraw, |
| const SkISize& size, |
| float xformedSigma) { |
| static const GrUniqueKey::Domain kDomain = GrUniqueKey::GenerateDomain(); |
| GrUniqueKey key; |
| GrUniqueKey::Builder builder(&key, kDomain, 9); |
| builder[0] = SkScalarCeilToInt(xformedSigma - 1 / 6.0f); |
| |
| int index = 1; |
| for (auto c : {SkRRect::kUpperLeft_Corner, SkRRect::kUpperRight_Corner, |
| SkRRect::kLowerRight_Corner, SkRRect::kLowerLeft_Corner}) { |
| SkASSERT(SkScalarIsInt(rrectToDraw.radii(c).fX) && |
| SkScalarIsInt(rrectToDraw.radii(c).fY)); |
| builder[index++] = SkScalarCeilToInt(rrectToDraw.radii(c).fX); |
| builder[index++] = SkScalarCeilToInt(rrectToDraw.radii(c).fY); |
| } |
| builder.finish(); |
| |
| GrProxyProvider* proxyProvider = context->contextPriv().proxyProvider(); |
| |
| sk_sp<GrTextureProxy> mask( |
| proxyProvider->findOrCreateProxyByUniqueKey(key, kBottomLeft_GrSurfaceOrigin)); |
| if (!mask) { |
| // TODO: this could be approx but the texture coords will need to be updated |
| sk_sp<GrRenderTargetContext> rtc(context->makeDeferredRenderTargetContextWithFallback( |
| SkBackingFit::kExact, size.fWidth, size.fHeight, kAlpha_8_GrPixelConfig, |
| nullptr)); |
| if (!rtc) { |
| return nullptr; |
| } |
| |
| GrPaint paint; |
| |
| rtc->clear(nullptr, 0x0, GrRenderTargetContext::CanClearFullscreen::kYes); |
| rtc->drawRRect(GrNoClip(), std::move(paint), GrAA::kYes, SkMatrix::I(), rrectToDraw, |
| GrStyle::SimpleFill()); |
| |
| sk_sp<GrTextureProxy> srcProxy(rtc->asTextureProxyRef()); |
| if (!srcProxy) { |
| return nullptr; |
| } |
| sk_sp<GrRenderTargetContext> rtc2( |
| SkGpuBlurUtils::GaussianBlur(context, |
| std::move(srcProxy), |
| nullptr, |
| SkIRect::MakeWH(size.fWidth, size.fHeight), |
| SkIRect::EmptyIRect(), |
| xformedSigma, |
| xformedSigma, |
| GrTextureDomain::kIgnore_Mode, |
| SkBackingFit::kExact)); |
| if (!rtc2) { |
| return nullptr; |
| } |
| |
| mask = rtc2->asTextureProxyRef(); |
| if (!mask) { |
| return nullptr; |
| } |
| SkASSERT(mask->origin() == kBottomLeft_GrSurfaceOrigin); |
| proxyProvider->assignUniqueKeyToProxy(key, mask.get()); |
| } |
| |
| return mask; |
| } |
| float sigma() const { return fSigma; } |
| SkRect rect() const { return fRect; } |
| float cornerRadius() const { return fCornerRadius; } |
| |
| static std::unique_ptr<GrFragmentProcessor> Make(GrContext* context, float sigma, |
| float xformedSigma, const SkRRect& srcRRect, |
| const SkRRect& devRRect); |
| GrRRectBlurEffect(const GrRRectBlurEffect& src); |
| std::unique_ptr<GrFragmentProcessor> clone() const override; |
| const char* name() const override { return "RRectBlurEffect"; } |
| |
| private: |
| GrRRectBlurEffect(float sigma, SkRect rect, float cornerRadius, |
| sk_sp<GrTextureProxy> ninePatchSampler) |
| : INHERITED(kGrRRectBlurEffect_ClassID, |
| (OptimizationFlags)kCompatibleWithCoverageAsAlpha_OptimizationFlag) |
| , fSigma(sigma) |
| , fRect(rect) |
| , fCornerRadius(cornerRadius) |
| , fNinePatchSampler(std::move(ninePatchSampler)) { |
| this->addTextureSampler(&fNinePatchSampler); |
| } |
| GrGLSLFragmentProcessor* onCreateGLSLInstance() const override; |
| void onGetGLSLProcessorKey(const GrShaderCaps&, GrProcessorKeyBuilder*) const override; |
| bool onIsEqual(const GrFragmentProcessor&) const override; |
| GR_DECLARE_FRAGMENT_PROCESSOR_TEST |
| float fSigma; |
| SkRect fRect; |
| float fCornerRadius; |
| TextureSampler fNinePatchSampler; |
| typedef GrFragmentProcessor INHERITED; |
| }; |
| #endif |
| #endif |