skia2/include/utils/SkNWayCanvas.h
Mike Reed 2076b04d15 new virtuals for canvas ctm
1. Feature: Clients need to override didConcat44() (new data)
2. Perf: Clients need to override didTranslate (and now didScale) so our
         default impls can be empty.

Need SK_SUPPORT_LEGACY_CANVAS_MATRIX_VIRTUALS flag to stage this in
clients (anyone who subclasses SkCanvas)

Before (with flag)
    120.87  	canvas_matrix_4x4	8888
    108.10 ?	canvas_matrix_3x3	8888
    108.13 ?	canvas_matrix_2x3	8888
    141.54  	canvas_matrix_scale	8888
    128.04  	canvas_matrix_trans	8888

After (without the flag)
    ...
     90.79  	canvas_matrix_scale	8888
     94.51  	canvas_matrix_trans	8888

bug: skia:9768

Change-Id: I6f500138dd6b2b24754dc065c650d0bd3c341540
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/263349
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
2020-01-10 13:30:11 +00:00

98 lines
4.3 KiB
C++

/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkNWayCanvas_DEFINED
#define SkNWayCanvas_DEFINED
#include "include/core/SkCanvasVirtualEnforcer.h"
#include "include/private/SkTDArray.h"
#include "include/utils/SkNoDrawCanvas.h"
class SK_API SkNWayCanvas : public SkCanvasVirtualEnforcer<SkNoDrawCanvas> {
public:
SkNWayCanvas(int width, int height);
~SkNWayCanvas() override;
virtual void addCanvas(SkCanvas*);
virtual void removeCanvas(SkCanvas*);
virtual void removeAll();
protected:
SkTDArray<SkCanvas*> fList;
void willSave() override;
SaveLayerStrategy getSaveLayerStrategy(const SaveLayerRec&) override;
bool onDoSaveBehind(const SkRect*) override;
void willRestore() override;
void didConcat44(const SkScalar[16]) override;
void didConcat(const SkMatrix&) override;
void didSetMatrix(const SkMatrix&) override;
void didScale(SkScalar, SkScalar) override;
void didTranslate(SkScalar, SkScalar) override;
void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) override;
virtual void onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y,
const SkPaint& paint) override;
virtual void onDrawPatch(const SkPoint cubics[12], const SkColor colors[4],
const SkPoint texCoords[4], SkBlendMode,
const SkPaint& paint) override;
void onDrawPaint(const SkPaint&) override;
void onDrawBehind(const SkPaint&) override;
void onDrawPoints(PointMode, size_t count, const SkPoint pts[], const SkPaint&) override;
void onDrawRect(const SkRect&, const SkPaint&) override;
void onDrawRegion(const SkRegion&, const SkPaint&) override;
void onDrawOval(const SkRect&, const SkPaint&) override;
void onDrawArc(const SkRect&, SkScalar, SkScalar, bool, const SkPaint&) override;
void onDrawRRect(const SkRRect&, const SkPaint&) override;
void onDrawPath(const SkPath&, const SkPaint&) override;
void onDrawBitmap(const SkBitmap&, SkScalar left, SkScalar top, const SkPaint*) override;
void onDrawBitmapRect(const SkBitmap&, const SkRect* src, const SkRect& dst, const SkPaint*,
SrcRectConstraint) override;
void onDrawImage(const SkImage*, SkScalar left, SkScalar top, const SkPaint*) override;
void onDrawImageRect(const SkImage*, const SkRect* src, const SkRect& dst,
const SkPaint*, SrcRectConstraint) override;
void onDrawBitmapLattice(const SkBitmap&, const Lattice&, const SkRect&,
const SkPaint*) override;
void onDrawImageLattice(const SkImage*, const Lattice&, const SkRect&, const SkPaint*) override;
void onDrawImageNine(const SkImage*, const SkIRect& center, const SkRect& dst,
const SkPaint*) override;
void onDrawBitmapNine(const SkBitmap&, const SkIRect& center, const SkRect& dst,
const SkPaint*) override;
void onDrawVerticesObject(const SkVertices*, const SkVertices::Bone bones[], int boneCount,
SkBlendMode, const SkPaint&) override;
void onDrawAtlas(const SkImage*, const SkRSXform[], const SkRect[], const SkColor[],
int, SkBlendMode, const SkRect*, const SkPaint*) override;
void onDrawShadowRec(const SkPath&, const SkDrawShadowRec&) override;
void onClipRect(const SkRect&, SkClipOp, ClipEdgeStyle) override;
void onClipRRect(const SkRRect&, SkClipOp, ClipEdgeStyle) override;
void onClipPath(const SkPath&, SkClipOp, ClipEdgeStyle) override;
void onClipRegion(const SkRegion&, SkClipOp) override;
void onDrawPicture(const SkPicture*, const SkMatrix*, const SkPaint*) override;
void onDrawDrawable(SkDrawable*, const SkMatrix*) override;
void onDrawAnnotation(const SkRect&, const char[], SkData*) override;
void onDrawEdgeAAQuad(const SkRect&, const SkPoint[4], QuadAAFlags, const SkColor4f&,
SkBlendMode) override;
void onDrawEdgeAAImageSet(const ImageSetEntry[], int count, const SkPoint[], const SkMatrix[],
const SkPaint*, SrcRectConstraint) override;
void onFlush() override;
class Iter;
private:
typedef SkCanvasVirtualEnforcer<SkNoDrawCanvas> INHERITED;
};
#endif