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 "SkMiniRecorder.h"
13 #include "SkNoDrawCanvas.h"
14 #include "SkRecord.h"
15 #include "SkRecords.h"
16 #include "SkTDArray.h"
17 
18 class SkBBHFactory;
19 
20 class SkDrawableList : SkNoncopyable {
21 public:
SkDrawableList()22     SkDrawableList() {}
23     ~SkDrawableList();
24 
count()25     int count() const { return fArray.count(); }
begin()26     SkDrawable* const* begin() const { return fArray.begin(); }
27 
28     void append(SkDrawable* drawable);
29 
30     // Return a new or ref'd array of pictures that were snapped from our drawables.
31     SkBigPicture::SnapshotArray* newDrawableSnapshot();
32 
33 private:
34     SkTDArray<SkDrawable*> fArray;
35 };
36 
37 // SkRecorder provides an SkCanvas interface for recording into an SkRecord.
38 
39 class SkRecorder final : public SkNoDrawCanvas {
40 public:
41     // Does not take ownership of the SkRecord.
42     SkRecorder(SkRecord*, int width, int height, SkMiniRecorder* = nullptr);   // legacy version
43     SkRecorder(SkRecord*, const SkRect& bounds, SkMiniRecorder* = nullptr);
44 
45     enum DrawPictureMode { Record_DrawPictureMode, Playback_DrawPictureMode };
46     void reset(SkRecord*, const SkRect& bounds, DrawPictureMode, SkMiniRecorder* = nullptr);
47 
approxBytesUsedBySubPictures()48     size_t approxBytesUsedBySubPictures() const { return fApproxBytesUsedBySubPictures; }
49 
getDrawableList()50     SkDrawableList* getDrawableList() const { return fDrawableList.get(); }
detachDrawableList()51     std::unique_ptr<SkDrawableList> detachDrawableList() { return std::move(fDrawableList); }
52 
53     // Make SkRecorder forget entirely about its SkRecord*; all calls to SkRecorder will fail.
54     void forgetRecord();
55 
56     void willSave() override;
57     SaveLayerStrategy getSaveLayerStrategy(const SaveLayerRec&) override;
willRestore()58     void willRestore() override {}
59     void didRestore() override;
60 
61     void didConcat(const SkMatrix&) override;
62     void didSetMatrix(const SkMatrix&) override;
63     void didTranslate(SkScalar, SkScalar) override;
64 
65 #ifdef SK_EXPERIMENTAL_SHADOWING
66     void didTranslateZ(SkScalar) override;
67 #else
68     void didTranslateZ(SkScalar);
69 #endif
70 
71     void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) override;
72     void onDrawDrawable(SkDrawable*, const SkMatrix*) override;
73     void onDrawText(const void* text,
74                     size_t byteLength,
75                     SkScalar x,
76                     SkScalar y,
77                     const SkPaint& paint) override;
78     void onDrawPosText(const void* text,
79                        size_t byteLength,
80                        const SkPoint pos[],
81                        const SkPaint& paint) override;
82     void onDrawPosTextH(const void* text,
83                         size_t byteLength,
84                         const SkScalar xpos[],
85                         SkScalar constY,
86                         const SkPaint& paint) override;
87     void onDrawTextOnPath(const void* text,
88                           size_t byteLength,
89                           const SkPath& path,
90                           const SkMatrix* matrix,
91                           const SkPaint& paint) override;
92     void onDrawTextRSXform(const void* text,
93                            size_t byteLength,
94                            const SkRSXform[],
95                            const SkRect* cull,
96                            const SkPaint& paint) override;
97     void onDrawTextBlob(const SkTextBlob* blob,
98                         SkScalar x,
99                         SkScalar y,
100                         const SkPaint& paint) override;
101     void onDrawPatch(const SkPoint cubics[12], const SkColor colors[4],
102                      const SkPoint texCoords[4], SkBlendMode,
103                      const SkPaint& paint) override;
104 
105     void onDrawPaint(const SkPaint&) override;
106     void onDrawPoints(PointMode, size_t count, const SkPoint pts[], const SkPaint&) override;
107     void onDrawRect(const SkRect&, const SkPaint&) override;
108     void onDrawRegion(const SkRegion&, const SkPaint&) override;
109     void onDrawOval(const SkRect&, const SkPaint&) override;
110     void onDrawArc(const SkRect&, SkScalar, SkScalar, bool, const SkPaint&) override;
111     void onDrawRRect(const SkRRect&, const SkPaint&) override;
112     void onDrawPath(const SkPath&, const SkPaint&) override;
113     void onDrawBitmap(const SkBitmap&, SkScalar left, SkScalar top, const SkPaint*) override;
114     void onDrawBitmapRect(const SkBitmap&, const SkRect* src, const SkRect& dst, const SkPaint*,
115                           SrcRectConstraint) override;
116     void onDrawImage(const SkImage*, SkScalar left, SkScalar top, const SkPaint*) override;
117     void onDrawImageRect(const SkImage*, const SkRect* src, const SkRect& dst,
118                          const SkPaint*, SrcRectConstraint) override;
119     void onDrawImageNine(const SkImage*, const SkIRect& center, const SkRect& dst,
120                          const SkPaint*) override;
121     void onDrawBitmapNine(const SkBitmap&, const SkIRect& center, const SkRect& dst,
122                           const SkPaint*) override;
123     void onDrawImageLattice(const SkImage*, const Lattice& lattice, const SkRect& dst,
124                             const SkPaint*) override;
125     void onDrawBitmapLattice(const SkBitmap&, const Lattice& lattice, const SkRect& dst,
126                              const SkPaint*) override;
127     void onDrawVerticesObject(const SkVertices*, SkBlendMode, const SkPaint&) override;
128     void onDrawAtlas(const SkImage*, const SkRSXform[], const SkRect[], const SkColor[],
129                      int count, SkBlendMode, const SkRect* cull, const SkPaint*) override;
130 
131     void onClipRect(const SkRect& rect, SkClipOp, ClipEdgeStyle) override;
132     void onClipRRect(const SkRRect& rrect, SkClipOp, ClipEdgeStyle) override;
133     void onClipPath(const SkPath& path, SkClipOp, ClipEdgeStyle) override;
134     void onClipRegion(const SkRegion& deviceRgn, SkClipOp) override;
135 
136     void onDrawPicture(const SkPicture*, const SkMatrix*, const SkPaint*) override;
137 
138 #ifdef SK_EXPERIMENTAL_SHADOWING
139     void onDrawShadowedPicture(const SkPicture*,
140                                const SkMatrix*,
141                                const SkPaint*,
142                                const SkShadowParams& params) override;
143 #else
144     void onDrawShadowedPicture(const SkPicture*,
145                                const SkMatrix*,
146                                const SkPaint*,
147                                const SkShadowParams& params);
148 #endif
149 
150     void onDrawAnnotation(const SkRect&, const char[], SkData*) override;
151 
152     sk_sp<SkSurface> onNewSurface(const SkImageInfo&, const SkSurfaceProps&) override;
153 
154     void flushMiniRecorder();
155 
156 private:
157     template <typename T>
158     T* copy(const T*);
159 
160     template <typename T>
161     T* copy(const T[], size_t count);
162 
163     DrawPictureMode fDrawPictureMode;
164     size_t fApproxBytesUsedBySubPictures;
165     SkRecord* fRecord;
166     std::unique_ptr<SkDrawableList> fDrawableList;
167 
168     SkMiniRecorder* fMiniRecorder;
169 };
170 
171 #endif//SkRecorder_DEFINED
172