skia2/experimental/xform/SkXform.h
Greg Daniel f91aeb259e Move a bunch of gpu files out of include/private and into src/gpu.
In GrRecordingContext I moved the auditTrail onto the heap and only there
when compiling for tests. This allowed us to move a lot of files out of
include private.

Change-Id: Ib76ac211c0c6fd10bacaccf0c5f93f21a59f35d5
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/221344
Commit-Queue: Greg Daniel <egdaniel@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Auto-Submit: Greg Daniel <egdaniel@google.com>
2019-06-18 14:24:42 +00:00

143 lines
3.2 KiB
C++

/*
* Copyright 2019 Google LLC.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkXform_DEFINED
#define SkXform_DEFINED
#include "include/core/SkClipOp.h"
#include "include/core/SkMatrix.h"
#include "include/core/SkPath.h"
#include "include/core/SkRRect.h"
#include "include/core/SkRect.h"
#include "include/core/SkRefCnt.h"
#include "include/private/SkTDArray.h"
class XformResolver {
public:
virtual ~XformResolver() {}
virtual void concat(const SkMatrix&) = 0;
virtual void clipRect(const SkRect&, SkClipOp) = 0;
virtual void clipRRect(const SkRRect&, SkClipOp) = 0;
virtual void clipPath(const SkPath&, SkClipOp) = 0;
};
class ClipCache : public SkRefCnt {
public:
ClipCache() {}
};
class Xform : public SkRefCnt {
public:
typedef uint32_t GenID;
Xform* parent() const { return fParent.get(); }
void setParent(sk_sp<Xform> p);
void visit(XformResolver* resolver);
GenID genID() const { return fGenID; }
bool isCached() const { return !!fClip; }
void invalidateCaches();
const SkMatrix& ctm() const { return fCTM; }
ClipCache* clip() const { return fClip.get(); }
void setCache(const SkMatrix&, sk_sp<ClipCache>);
protected:
Xform(sk_sp<Xform> parent = nullptr) {
if (parent) {
this->setParent(std::move(parent));
}
}
virtual void onVisit(XformResolver*) {}
private:
sk_sp<Xform> fParent;
// unowned bare pointers
SkTDArray<Xform*> fChildren;
// cache
SkMatrix fCTM;
sk_sp<ClipCache> fClip;
uint32_t fGenID = 0;
static GenID NextGenID();
void internalInvalidateCaches() { fClip = nullptr; }
void internalAddChild(Xform*);
void internalRemoveChild(Xform*);
#ifdef SK_DEBUG
void debugValidate() const;
#else
void debugValidate() const {}
#endif
};
///////////////////////////////////////////////////////////////////////////////////////////////
class MatrixXF : public Xform {
public:
static sk_sp<MatrixXF> Make(sk_sp<Xform> parent = nullptr) {
return sk_sp<MatrixXF>(new MatrixXF(std::move(parent)));
}
MatrixXF(sk_sp<Xform> parent) : Xform(std::move(parent)) {
fLocalMatrix.reset();
}
void setLocalMatrix(const SkMatrix& m) {
fLocalMatrix = m;
}
void setTranslate(SkScalar sx, SkScalar sy) {
fLocalMatrix.setTranslate(sx, sy);
}
void setScale(SkScalar sx, SkScalar sy) {
fLocalMatrix.setScale(sx, sy);
}
void setRotate(SkScalar degrees) {
fLocalMatrix.setRotate(degrees);
}
protected:
void onVisit(XformResolver* resolver) override;
private:
SkMatrix fLocalMatrix;
};
class ClipXF : public Xform {
public:
ClipXF(sk_sp<Xform> parent = nullptr) : Xform(std::move(parent)) {}
ClipXF(sk_sp<Xform> parent, const SkRect& r, SkClipOp op = SkClipOp::kIntersect)
: Xform(std::move(parent))
, fRect(r)
, fOp(op)
{}
void setRect(const SkRect& r, SkClipOp op = SkClipOp::kIntersect) {
fRect = r;
fOp = op;
}
protected:
void onVisit(XformResolver* resolver) override;
private:
SkRect fRect;
SkClipOp fOp;
};
#endif