1 /*
2  * Copyright 2014 Google Inc.
3  *
4  * Use of this source code is governed by a BSD-style license that can be
5  * found in the LICENSE file.
6  */
7 
8 #ifndef SkRecorder_DEFINED
9 #define SkRecorder_DEFINED
10 
11 #include "SkBigPicture.h"
12 #include "SkCanvasVirtualEnforcer.h"
13 #include "SkMiniRecorder.h"
14 #include "SkNoDrawCanvas.h"
15 #include "SkRecord.h"
16 #include "SkRecords.h"
17 #include "SkTDArray.h"
18 
19 class SkBBHFactory;
20 
21 class SkDrawableList : SkNoncopyable {
22 public:
SkDrawableList()23     SkDrawableList() {}
24     ~SkDrawableList();
25 
count()26     int count() const { return fArray.count(); }
begin()27     SkDrawable* const* begin() const { return fArray.begin(); }
28 
29     void append(SkDrawable* drawable);
30 
31     // Return a new or ref'd array of pictures that were snapped from our drawables.
32     SkBigPicture::SnapshotArray* newDrawableSnapshot();
33 
34 private:
35     SkTDArray<SkDrawable*> fArray;
36 };
37 
38 // SkRecorder provides an SkCanvas interface for recording into an SkRecord.
39 
40 class SkRecorder final : public SkCanvasVirtualEnforcer<SkNoDrawCanvas> {
41 public:
42     // Does not take ownership of the SkRecord.
43     SkRecorder(SkRecord*, int width, int height, SkMiniRecorder* = nullptr);   // legacy version
44     SkRecorder(SkRecord*, const SkRect& bounds, SkMiniRecorder* = nullptr);
45 
46     enum DrawPictureMode { Record_DrawPictureMode, Playback_DrawPictureMode };
47     void reset(SkRecord*, const SkRect& bounds, DrawPictureMode, SkMiniRecorder* = nullptr);
48 
approxBytesUsedBySubPictures()49     size_t approxBytesUsedBySubPictures() const { return fApproxBytesUsedBySubPictures; }
50 
getDrawableList()51     SkDrawableList* getDrawableList() const { return fDrawableList.get(); }
detachDrawableList()52     std::unique_ptr<SkDrawableList> detachDrawableList() { return std::move(fDrawableList); }
53 
54     // Make SkRecorder forget entirely about its SkRecord*; all calls to SkRecorder will fail.
55     void forgetRecord();
56 
57     void onFlush() override;
58 
59     void willSave() override;
60     SaveLayerStrategy getSaveLayerStrategy(const SaveLayerRec&) override;
61     bool onDoSaveBehind(const SkRect*) override;
willRestore()62     void willRestore() override {}
63     void didRestore() override;
64 
65     void didConcat(const SkMatrix&) override;
66     void didSetMatrix(const SkMatrix&) override;
67     void didTranslate(SkScalar, SkScalar) override;
68 
69     void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) override;
70     void onDrawDrawable(SkDrawable*, const SkMatrix*) override;
71     void onDrawTextBlob(const SkTextBlob* blob,
72                         SkScalar x,
73                         SkScalar y,
74                         const SkPaint& paint) override;
75     void onDrawPatch(const SkPoint cubics[12], const SkColor colors[4],
76                      const SkPoint texCoords[4], SkBlendMode,
77                      const SkPaint& paint) override;
78 
79     void onDrawPaint(const SkPaint&) override;
80     void onDrawBehind(const SkPaint&) override;
81     void onDrawPoints(PointMode, size_t count, const SkPoint pts[], const SkPaint&) override;
82     void onDrawRect(const SkRect&, const SkPaint&) override;
83     void onDrawEdgeAARect(const SkRect&, SkCanvas::QuadAAFlags, SkColor, SkBlendMode) override;
84     void onDrawRegion(const SkRegion&, const SkPaint&) override;
85     void onDrawOval(const SkRect&, const SkPaint&) override;
86     void onDrawArc(const SkRect&, SkScalar, SkScalar, bool, const SkPaint&) override;
87     void onDrawRRect(const SkRRect&, const SkPaint&) override;
88     void onDrawPath(const SkPath&, const SkPaint&) override;
89     void onDrawBitmap(const SkBitmap&, SkScalar left, SkScalar top, const SkPaint*) override;
90     void onDrawBitmapRect(const SkBitmap&, const SkRect* src, const SkRect& dst, const SkPaint*,
91                           SrcRectConstraint) override;
92     void onDrawImage(const SkImage*, SkScalar left, SkScalar top, const SkPaint*) override;
93     void onDrawImageRect(const SkImage*, const SkRect* src, const SkRect& dst,
94                          const SkPaint*, SrcRectConstraint) override;
95     void onDrawImageNine(const SkImage*, const SkIRect& center, const SkRect& dst,
96                          const SkPaint*) override;
97     void onDrawBitmapNine(const SkBitmap&, const SkIRect& center, const SkRect& dst,
98                           const SkPaint*) override;
99     void onDrawImageLattice(const SkImage*, const Lattice& lattice, const SkRect& dst,
100                             const SkPaint*) override;
101     void onDrawBitmapLattice(const SkBitmap&, const Lattice& lattice, const SkRect& dst,
102                              const SkPaint*) override;
103     void onDrawImageSet(const SkCanvas::ImageSetEntry[], int count, SkFilterQuality,
104                         SkBlendMode) override;
105     void onDrawVerticesObject(const SkVertices*, const SkVertices::Bone bones[], int boneCount,
106                               SkBlendMode, const SkPaint&) override;
107     void onDrawAtlas(const SkImage*, const SkRSXform[], const SkRect[], const SkColor[],
108                      int count, SkBlendMode, const SkRect* cull, const SkPaint*) override;
109     void onDrawShadowRec(const SkPath&, const SkDrawShadowRec&) override;
110 
111     void onClipRect(const SkRect& rect, SkClipOp, ClipEdgeStyle) override;
112     void onClipRRect(const SkRRect& rrect, SkClipOp, ClipEdgeStyle) override;
113     void onClipPath(const SkPath& path, SkClipOp, ClipEdgeStyle) override;
114     void onClipRegion(const SkRegion& deviceRgn, SkClipOp) override;
115 
116     void onDrawPicture(const SkPicture*, const SkMatrix*, const SkPaint*) override;
117 
118     void onDrawAnnotation(const SkRect&, const char[], SkData*) override;
119 
120     sk_sp<SkSurface> onNewSurface(const SkImageInfo&, const SkSurfaceProps&) override;
121 
122     void flushMiniRecorder();
123 
124 private:
125     template <typename T>
126     T* copy(const T*);
127 
128     template <typename T>
129     T* copy(const T[], size_t count);
130 
131     template<typename T, typename... Args>
132     void append(Args&&...);
133 
134     DrawPictureMode fDrawPictureMode;
135     size_t fApproxBytesUsedBySubPictures;
136     SkRecord* fRecord;
137     std::unique_ptr<SkDrawableList> fDrawableList;
138 
139     SkMiniRecorder* fMiniRecorder;
140 };
141 
142 #endif//SkRecorder_DEFINED
143