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 "SkCanvas.h"
13 #include "SkMiniRecorder.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 : public SkCanvas {
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     SkDrawableList* detachDrawableList() { return fDrawableList.detach(); }
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 
64     void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) override;
65     void onDrawDrawable(SkDrawable*, const SkMatrix*) override;
66     void onDrawText(const void* text,
67                     size_t byteLength,
68                     SkScalar x,
69                     SkScalar y,
70                     const SkPaint& paint) override;
71     void onDrawPosText(const void* text,
72                        size_t byteLength,
73                        const SkPoint pos[],
74                        const SkPaint& paint) override;
75     void onDrawPosTextH(const void* text,
76                         size_t byteLength,
77                         const SkScalar xpos[],
78                         SkScalar constY,
79                         const SkPaint& paint) override;
80     void onDrawTextOnPath(const void* text,
81                           size_t byteLength,
82                           const SkPath& path,
83                           const SkMatrix* matrix,
84                           const SkPaint& paint) override;
85     void onDrawTextBlob(const SkTextBlob* blob,
86                         SkScalar x,
87                         SkScalar y,
88                         const SkPaint& paint) override;
89     void onDrawPatch(const SkPoint cubics[12], const SkColor colors[4],
90                      const SkPoint texCoords[4], SkXfermode* xmode,
91                      const SkPaint& paint) override;
92 
93     void onDrawPaint(const SkPaint&) override;
94     void onDrawPoints(PointMode, size_t count, const SkPoint pts[], const SkPaint&) override;
95     void onDrawRect(const SkRect&, const SkPaint&) override;
96     void onDrawOval(const SkRect&, const SkPaint&) override;
97     void onDrawRRect(const SkRRect&, const SkPaint&) override;
98     void onDrawPath(const SkPath&, const SkPaint&) override;
99     void onDrawBitmap(const SkBitmap&, SkScalar left, SkScalar top, const SkPaint*) override;
100     void onDrawBitmapRect(const SkBitmap&, const SkRect* src, const SkRect& dst, const SkPaint*,
101                           SrcRectConstraint) override;
102     void onDrawImage(const SkImage*, SkScalar left, SkScalar top, const SkPaint*) override;
103     void onDrawImageRect(const SkImage*, const SkRect* src, const SkRect& dst,
104                          const SkPaint*, SrcRectConstraint) override;
105     void onDrawImageNine(const SkImage*, const SkIRect& center, const SkRect& dst,
106                          const SkPaint*) override;
107     void onDrawBitmapNine(const SkBitmap&, const SkIRect& center, const SkRect& dst,
108                           const SkPaint*) override;
109     void onDrawVertices(VertexMode vmode, int vertexCount,
110                         const SkPoint vertices[], const SkPoint texs[],
111                         const SkColor colors[], SkXfermode* xmode,
112                         const uint16_t indices[], int indexCount,
113                         const SkPaint&) override;
114     void onDrawAtlas(const SkImage*, const SkRSXform[], const SkRect[], const SkColor[],
115                      int count, SkXfermode::Mode, const SkRect* cull, const SkPaint*) override;
116 
117     void onClipRect(const SkRect& rect, SkRegion::Op op, ClipEdgeStyle edgeStyle) override;
118     void onClipRRect(const SkRRect& rrect, SkRegion::Op op, ClipEdgeStyle edgeStyle) override;
119     void onClipPath(const SkPath& path, SkRegion::Op op, ClipEdgeStyle edgeStyle) override;
120     void onClipRegion(const SkRegion& deviceRgn, SkRegion::Op op) override;
121 
122     void onDrawPicture(const SkPicture*, const SkMatrix*, const SkPaint*) override;
123 
onNewSurface(const SkImageInfo &,const SkSurfaceProps &)124     SkSurface* onNewSurface(const SkImageInfo&, const SkSurfaceProps&) override { return nullptr; }
125 
126     void flushMiniRecorder();
127 
128 private:
129     template <typename T>
130     T* copy(const T*);
131 
132     template <typename T>
133     T* copy(const T[], size_t count);
134 
devBounds()135     SkIRect devBounds() const {
136         SkIRect devBounds;
137         this->getClipDeviceBounds(&devBounds);
138         return devBounds;
139     }
140 
141     DrawPictureMode fDrawPictureMode;
142     size_t fApproxBytesUsedBySubPictures;
143     SkRecord* fRecord;
144     SkAutoTDelete<SkDrawableList> fDrawableList;
145 
146     SkMiniRecorder* fMiniRecorder;
147 };
148 
149 #endif//SkRecorder_DEFINED
150