dafd65217b
This reverts commit0b36acdad9. Reason for revert: Cannot repro build failure - maybe flake? Trying again. Original change's description: > Revert "[skottie] Add drop shadow support" > > This reverts commit1f43a4359d. > > Reason for revert: Android build failures. > > Original change's description: > > [skottie] Add drop shadow support > > > > Introduce the machinery required for general image filters in SkSG + > > a concrete drop shadow image filter effect. > > > > Wire it all up with Skottie to support drop-shadow layer effects. > > > > Change-Id: I98e9669852f58ba6481439a7fda4a56ec6c59b8a > > Reviewed-on: https://skia-review.googlesource.com/c/190426 > > Reviewed-by: Mike Reed <reed@google.com> > > Commit-Queue: Florin Malita <fmalita@chromium.org> > > TBR=fmalita@chromium.org,reed@google.com > > Change-Id: I31d38ed4d4a15b77d1d1218b2677a891978332cb > No-Presubmit: true > No-Tree-Checks: true > No-Try: true > Reviewed-on: https://skia-review.googlesource.com/c/190981 > Reviewed-by: Florin Malita <fmalita@chromium.org> > Commit-Queue: Florin Malita <fmalita@chromium.org> TBR=fmalita@chromium.org,reed@google.com Change-Id: Ic3f949f40ed4651715b6de906882f5f4522f91b9 No-Presubmit: true No-Tree-Checks: true No-Try: true Reviewed-on: https://skia-review.googlesource.com/c/191040 Reviewed-by: Florin Malita <fmalita@chromium.org> Commit-Queue: Florin Malita <fmalita@chromium.org>
103 lines
2.9 KiB
C++
103 lines
2.9 KiB
C++
/*
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* Copyright 2017 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef SkSGRenderNode_DEFINED
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#define SkSGRenderNode_DEFINED
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#include "SkSGNode.h"
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#include "SkColorFilter.h"
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class SkCanvas;
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class SkImageFilter;
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class SkPaint;
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namespace sksg {
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/**
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* Base class for nodes which can render to a canvas.
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*/
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class RenderNode : public Node {
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protected:
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struct RenderContext;
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public:
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// Render the node and its descendants to the canvas.
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void render(SkCanvas*, const RenderContext* = nullptr) const;
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protected:
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RenderNode();
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virtual void onRender(SkCanvas*, const RenderContext*) const = 0;
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// Paint property overrides.
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// These are deferred until we can determine whether they can be applied to the individual
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// draw paints, or whether they require content isolation (applied to a layer).
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struct RenderContext {
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sk_sp<SkColorFilter> fColorFilter;
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float fOpacity = 1;
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// Returns true if the paint was modified.
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bool modulatePaint(SkPaint*) const;
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};
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class ScopedRenderContext final {
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public:
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ScopedRenderContext(SkCanvas*, const RenderContext*);
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~ScopedRenderContext();
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ScopedRenderContext(ScopedRenderContext&& that) { *this = std::move(that); }
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ScopedRenderContext& operator=(ScopedRenderContext&& that) {
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fCanvas = that.fCanvas;
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fCtx = std::move(that.fCtx);
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fRestoreCount = that.fRestoreCount;
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// scope ownership is being transferred
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that.fRestoreCount = -1;
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return *this;
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}
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operator const RenderContext* () const { return &fCtx; }
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// Add (cumulative) paint overrides to a render node sub-DAG.
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ScopedRenderContext&& modulateOpacity(float opacity);
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ScopedRenderContext&& modulateColorFilter(sk_sp<SkColorFilter>);
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// Force content isolation for a node sub-DAG by applying the RenderContext
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// overrides via a layer.
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ScopedRenderContext&& setIsolation(const SkRect& bounds, bool do_isolate);
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// Similarly, force content isolation by applying the RenderContext overrides and
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// an image filter via a single layer.
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ScopedRenderContext&& setFilterIsolation(const SkRect& bounds, sk_sp<SkImageFilter>);
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private:
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// stack-only
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void* operator new(size_t) = delete;
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void* operator new(size_t, void*) = delete;
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// Scopes cannot be copied.
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ScopedRenderContext(const ScopedRenderContext&) = delete;
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ScopedRenderContext& operator=(const ScopedRenderContext&) = delete;
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SkCanvas* fCanvas;
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RenderContext fCtx;
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int fRestoreCount;
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};
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private:
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friend class ImageFilterEffect;
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typedef Node INHERITED;
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};
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} // namespace sksg
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#endif // SkSGRenderNode_DEFINED
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