1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkNoDrawCanvas_DEFINED
#define SkNoDrawCanvas_DEFINED
#include "SkCanvas.h"
#include "SkCanvasVirtualEnforcer.h"
#include "SkVertices.h"
struct SkIRect;
// SkNoDrawCanvas is a helper for SkCanvas subclasses which do not need to
// actually rasterize (e.g., analysis of the draw calls).
//
// It provides the following simplifications:
//
// * not backed by any device/pixels
// * conservative clipping (clipping calls only use rectangles)
//
class SK_API SkNoDrawCanvas : public SkCanvasVirtualEnforcer<SkCanvas> {
public:
SkNoDrawCanvas(int width, int height);
// TODO: investigate the users of this ctor.
SkNoDrawCanvas(const SkIRect&);
explicit SkNoDrawCanvas(sk_sp<SkBaseDevice> device);
// Optimization to reset state to be the same as after construction.
void resetCanvas(int width, int height) {
resetForNextPicture(SkIRect::MakeWH(width, height));
}
protected:
SaveLayerStrategy getSaveLayerStrategy(const SaveLayerRec& rec) override;
// No-op overrides for aborting rasterization earlier than SkNullBlitter.
void onDrawAnnotation(const SkRect&, const char[], SkData*) override {}
void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) override {}
void onDrawDrawable(SkDrawable*, const SkMatrix*) override {}
void onDrawText(const void*, size_t, SkScalar, SkScalar, const SkPaint&) override {}
void onDrawPosText(const void*, size_t, const SkPoint[], const SkPaint&) override {}
void onDrawPosTextH(const void*, size_t, const SkScalar[], SkScalar, const SkPaint&) override {}
void onDrawTextOnPath(const void*, size_t, const SkPath&, const SkMatrix*,
const SkPaint&) override {}
void onDrawTextRSXform(const void*, size_t, const SkRSXform[], const SkRect*,
const SkPaint&) override {}
void onDrawTextBlob(const SkTextBlob*, SkScalar, SkScalar, const SkPaint&) override {}
void onDrawPatch(const SkPoint[12], const SkColor[4], const SkPoint[4], SkBlendMode,
const SkPaint&) override {}
void onDrawPaint(const SkPaint&) override {}
void onDrawPoints(PointMode, size_t, const SkPoint[], 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, SkScalar, const SkPaint*) override {}
void onDrawBitmapRect(const SkBitmap&, const SkRect*, const SkRect&, const SkPaint*,
SrcRectConstraint) override {}
void onDrawImage(const SkImage*, SkScalar, SkScalar, const SkPaint*) override {}
void onDrawImageRect(const SkImage*, const SkRect*, const SkRect&, const SkPaint*,
SrcRectConstraint) override {}
void onDrawImageNine(const SkImage*, const SkIRect&, const SkRect&, const SkPaint*) override {}
void onDrawBitmapNine(const SkBitmap&, const SkIRect&, const SkRect&,
const SkPaint*) override {}
void onDrawImageLattice(const SkImage*, const Lattice&, const SkRect&,
const SkPaint*) override {}
void onDrawBitmapLattice(const SkBitmap&, const Lattice&, const SkRect&,
const SkPaint*) override {}
void onDrawVerticesObject(const SkVertices*, const SkMatrix*, int, 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 onDrawPicture(const SkPicture*, const SkMatrix*, const SkPaint*) override {}
private:
typedef SkCanvasVirtualEnforcer<SkCanvas> INHERITED;
};
#endif // SkNoDrawCanvas_DEFINED
|
