SkRecorder.h revision 3729469d6a12266037b697c2192768545e097ab0 
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 "SkCanvas.h"
12#include "SkRecord.h"
13#include "SkRecords.h"
14#include "SkTDArray.h"
15
16class SkBBHFactory;
17
18class SkCanvasDrawableList : SkNoncopyable {
19public:
20    ~SkCanvasDrawableList();
21
22    int count() const { return fArray.count(); }
23    SkCanvasDrawable* const* begin() const { return fArray.begin(); }
24
25    void append(SkCanvasDrawable* drawable);
26
27    // Return a new or ref'd array of pictures that were snapped from our drawables.
28    SkPicture::SnapshotArray* newDrawableSnapshot();
29
30private:
31    SkTDArray<SkCanvasDrawable*> fArray;
32};
33
34// SkRecorder provides an SkCanvas interface for recording into an SkRecord.
35
36class SkRecorder : public SkCanvas {
37public:
38    // Does not take ownership of the SkRecord.
39    SkRecorder(SkRecord*, int width, int height);   // legacy version
40    SkRecorder(SkRecord*, const SkRect& bounds);
41
42    SkCanvasDrawableList* getDrawableList() const { return fDrawableList.get(); }
43    SkCanvasDrawableList* detachDrawableList() { return fDrawableList.detach(); }
44
45    // Make SkRecorder forget entirely about its SkRecord*; all calls to SkRecorder will fail.
46    void forgetRecord();
47
48    void drawPaint(const SkPaint& paint) SK_OVERRIDE;
49    void drawPoints(PointMode mode,
50                    size_t count,
51                    const SkPoint pts[],
52                    const SkPaint& paint) SK_OVERRIDE;
53    void drawRect(const SkRect& rect, const SkPaint& paint) SK_OVERRIDE;
54    void drawOval(const SkRect& oval, const SkPaint&) SK_OVERRIDE;
55    void drawRRect(const SkRRect& rrect, const SkPaint& paint) SK_OVERRIDE;
56    void drawPath(const SkPath& path, const SkPaint& paint) SK_OVERRIDE;
57    void drawBitmap(const SkBitmap& bitmap,
58                    SkScalar left,
59                    SkScalar top,
60                    const SkPaint* paint = NULL) SK_OVERRIDE;
61    void drawBitmapRectToRect(const SkBitmap& bitmap,
62                              const SkRect* src,
63                              const SkRect& dst,
64                              const SkPaint* paint = NULL,
65                              DrawBitmapRectFlags flags = kNone_DrawBitmapRectFlag) SK_OVERRIDE;
66    void drawBitmapMatrix(const SkBitmap& bitmap,
67                          const SkMatrix& m,
68                          const SkPaint* paint = NULL) SK_OVERRIDE;
69    void drawBitmapNine(const SkBitmap& bitmap,
70                        const SkIRect& center,
71                        const SkRect& dst,
72                        const SkPaint* paint = NULL) SK_OVERRIDE;
73    virtual void drawImage(const SkImage* image, SkScalar left, SkScalar top,
74                           const SkPaint* paint = NULL) SK_OVERRIDE;
75    virtual void drawImageRect(const SkImage* image, const SkRect* src,
76                               const SkRect& dst,
77                               const SkPaint* paint = NULL) SK_OVERRIDE;
78    void drawSprite(const SkBitmap& bitmap,
79                    int left,
80                    int top,
81                    const SkPaint* paint = NULL) SK_OVERRIDE;
82    void drawVertices(VertexMode vmode,
83                      int vertexCount,
84                      const SkPoint vertices[],
85                      const SkPoint texs[],
86                      const SkColor colors[],
87                      SkXfermode* xmode,
88                      const uint16_t indices[],
89                      int indexCount,
90                      const SkPaint& paint) SK_OVERRIDE;
91
92    void willSave() SK_OVERRIDE;
93    SaveLayerStrategy willSaveLayer(const SkRect*, const SkPaint*, SkCanvas::SaveFlags) SK_OVERRIDE;
94    void willRestore() SK_OVERRIDE {}
95    void didRestore() SK_OVERRIDE;
96
97    void didConcat(const SkMatrix&) SK_OVERRIDE;
98    void didSetMatrix(const SkMatrix&) SK_OVERRIDE;
99
100    void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) SK_OVERRIDE;
101    void onDrawDrawable(SkCanvasDrawable*) SK_OVERRIDE;
102    void onDrawText(const void* text,
103                    size_t byteLength,
104                    SkScalar x,
105                    SkScalar y,
106                    const SkPaint& paint) SK_OVERRIDE;
107    void onDrawPosText(const void* text,
108                       size_t byteLength,
109                       const SkPoint pos[],
110                       const SkPaint& paint) SK_OVERRIDE;
111    void onDrawPosTextH(const void* text,
112                        size_t byteLength,
113                        const SkScalar xpos[],
114                        SkScalar constY,
115                        const SkPaint& paint) SK_OVERRIDE;
116    void onDrawTextOnPath(const void* text,
117                          size_t byteLength,
118                          const SkPath& path,
119                          const SkMatrix* matrix,
120                          const SkPaint& paint) SK_OVERRIDE;
121    void onDrawTextBlob(const SkTextBlob* blob,
122                        SkScalar x,
123                        SkScalar y,
124                        const SkPaint& paint) SK_OVERRIDE;
125    void onDrawPatch(const SkPoint cubics[12], const SkColor colors[4],
126                     const SkPoint texCoords[4], SkXfermode* xmode,
127                     const SkPaint& paint) SK_OVERRIDE;
128
129    void onClipRect(const SkRect& rect, SkRegion::Op op, ClipEdgeStyle edgeStyle) SK_OVERRIDE;
130    void onClipRRect(const SkRRect& rrect, SkRegion::Op op, ClipEdgeStyle edgeStyle) SK_OVERRIDE;
131    void onClipPath(const SkPath& path, SkRegion::Op op, ClipEdgeStyle edgeStyle) SK_OVERRIDE;
132    void onClipRegion(const SkRegion& deviceRgn, SkRegion::Op op) SK_OVERRIDE;
133
134    void onDrawPicture(const SkPicture*, const SkMatrix*, const SkPaint*) SK_OVERRIDE;
135
136    void onPushCull(const SkRect& cullRect) SK_OVERRIDE;
137    void onPopCull() SK_OVERRIDE;
138
139    void beginCommentGroup(const char*) SK_OVERRIDE;
140    void addComment(const char*, const char*) SK_OVERRIDE;
141    void endCommentGroup() SK_OVERRIDE;
142    void drawData(const void*, size_t) SK_OVERRIDE;
143
144    bool isDrawingToLayer() const SK_OVERRIDE;
145    SkSurface* onNewSurface(const SkImageInfo&, const SkSurfaceProps&) SK_OVERRIDE { return NULL; }
146
147private:
148    template <typename T>
149    T* copy(const T*);
150
151    template <typename T>
152    T* copy(const T[], size_t count);
153
154    SkIRect devBounds() const {
155        SkIRect devBounds;
156        this->getClipDeviceBounds(&devBounds);
157        return devBounds;
158    }
159
160    SkRecord* fRecord;
161
162    int fSaveLayerCount;
163    SkTDArray<SkBool8> fSaveIsSaveLayer;
164    SkAutoTDelete<SkCanvasDrawableList> fDrawableList;
165};
166
167#endif//SkRecorder_DEFINED
168