d62d406aa2
This reverts commit 2bafb64ed3.
Change-Id: I46f29284546a8978fd0005a0937e28410e5ac0da
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/220518
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
143 lines
3.2 KiB
C++
143 lines
3.2 KiB
C++
/*
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* Copyright 2019 Google LLC.
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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 SkXform_DEFINED
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#define SkXform_DEFINED
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#include "include/core/SkRefCnt.h"
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#include "include/core/SkMatrix.h"
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#include "include/core/SkClipOp.h"
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#include "include/core/SkRect.h"
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#include "include/core/SkRRect.h"
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#include "include/core/SkPath.h"
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#include "include/private/SkTDArray.h"
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class XformResolver {
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public:
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virtual ~XformResolver() {}
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virtual void concat(const SkMatrix&) = 0;
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virtual void clipRect(const SkRect&, SkClipOp) = 0;
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virtual void clipRRect(const SkRRect&, SkClipOp) = 0;
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virtual void clipPath(const SkPath&, SkClipOp) = 0;
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};
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class ClipCache : public SkRefCnt {
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public:
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ClipCache() {}
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};
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class Xform : public SkRefCnt {
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public:
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typedef uint32_t GenID;
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Xform* parent() const { return fParent.get(); }
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void setParent(sk_sp<Xform> p);
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void visit(XformResolver* resolver);
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GenID genID() const { return fGenID; }
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bool isCached() const { return !!fClip; }
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void invalidateCaches();
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const SkMatrix& ctm() const { return fCTM; }
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ClipCache* clip() const { return fClip.get(); }
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void setCache(const SkMatrix&, sk_sp<ClipCache>);
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protected:
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Xform(sk_sp<Xform> parent = nullptr) {
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if (parent) {
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this->setParent(std::move(parent));
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}
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}
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virtual void onVisit(XformResolver*) {}
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private:
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sk_sp<Xform> fParent;
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// unowned bare pointers
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SkTDArray<Xform*> fChildren;
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// cache
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SkMatrix fCTM;
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sk_sp<ClipCache> fClip;
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uint32_t fGenID = 0;
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static GenID NextGenID();
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void internalInvalidateCaches() { fClip = nullptr; }
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void internalAddChild(Xform*);
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void internalRemoveChild(Xform*);
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#ifdef SK_DEBUG
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void debugValidate() const;
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#else
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void debugValidate() const {}
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#endif
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};
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///////////////////////////////////////////////////////////////////////////////////////////////
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class MatrixXF : public Xform {
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public:
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static sk_sp<MatrixXF> Make(sk_sp<Xform> parent = nullptr) {
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return sk_sp<MatrixXF>(new MatrixXF(std::move(parent)));
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}
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MatrixXF(sk_sp<Xform> parent) : Xform(std::move(parent)) {
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fLocalMatrix.reset();
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}
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void setLocalMatrix(const SkMatrix& m) {
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fLocalMatrix = m;
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}
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void setTranslate(SkScalar sx, SkScalar sy) {
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fLocalMatrix.setTranslate(sx, sy);
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}
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void setScale(SkScalar sx, SkScalar sy) {
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fLocalMatrix.setScale(sx, sy);
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}
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void setRotate(SkScalar degrees) {
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fLocalMatrix.setRotate(degrees);
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}
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protected:
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void onVisit(XformResolver* resolver) override;
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private:
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SkMatrix fLocalMatrix;
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};
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class ClipXF : public Xform {
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public:
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ClipXF(sk_sp<Xform> parent = nullptr) : Xform(std::move(parent)) {}
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ClipXF(sk_sp<Xform> parent, const SkRect& r, SkClipOp op = SkClipOp::kIntersect)
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: Xform(std::move(parent))
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, fRect(r)
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, fOp(op)
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{}
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void setRect(const SkRect& r, SkClipOp op = SkClipOp::kIntersect) {
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fRect = r;
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fOp = op;
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}
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protected:
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void onVisit(XformResolver* resolver) override;
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private:
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SkRect fRect;
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SkClipOp fOp;
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};
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#endif
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