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      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:
     22     SkDrawableList() {}
     23     ~SkDrawableList();
     24 
     25     int count() const { return fArray.count(); }
     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 
     48     size_t approxBytesUsedBySubPictures() const { return fApproxBytesUsedBySubPictures; }
     49 
     50     SkDrawableList* getDrawableList() const { return fDrawableList.get(); }
     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 onFlush() override;
     57 
     58     void willSave() override;
     59     SaveLayerStrategy getSaveLayerStrategy(const SaveLayerRec&) override;
     60     void willRestore() override {}
     61     void didRestore() override;
     62 
     63     void didConcat(const SkMatrix&) override;
     64     void didSetMatrix(const SkMatrix&) override;
     65     void didTranslate(SkScalar, SkScalar) override;
     66 
     67     void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) override;
     68     void onDrawDrawable(SkDrawable*, const SkMatrix*) override;
     69     void onDrawText(const void* text,
     70                     size_t byteLength,
     71                     SkScalar x,
     72                     SkScalar y,
     73                     const SkPaint& paint) override;
     74     void onDrawPosText(const void* text,
     75                        size_t byteLength,
     76                        const SkPoint pos[],
     77                        const SkPaint& paint) override;
     78     void onDrawPosTextH(const void* text,
     79                         size_t byteLength,
     80                         const SkScalar xpos[],
     81                         SkScalar constY,
     82                         const SkPaint& paint) override;
     83     void onDrawTextOnPath(const void* text,
     84                           size_t byteLength,
     85                           const SkPath& path,
     86                           const SkMatrix* matrix,
     87                           const SkPaint& paint) override;
     88     void onDrawTextRSXform(const void* text,
     89                            size_t byteLength,
     90                            const SkRSXform[],
     91                            const SkRect* cull,
     92                            const SkPaint& paint) override;
     93     void onDrawTextBlob(const SkTextBlob* blob,
     94                         SkScalar x,
     95                         SkScalar y,
     96                         const SkPaint& paint) override;
     97     void onDrawPatch(const SkPoint cubics[12], const SkColor colors[4],
     98                      const SkPoint texCoords[4], SkBlendMode,
     99                      const SkPaint& paint) override;
    100 
    101     void onDrawPaint(const SkPaint&) override;
    102     void onDrawPoints(PointMode, size_t count, const SkPoint pts[], const SkPaint&) override;
    103     void onDrawRect(const SkRect&, const SkPaint&) override;
    104     void onDrawRegion(const SkRegion&, const SkPaint&) override;
    105     void onDrawOval(const SkRect&, const SkPaint&) override;
    106     void onDrawArc(const SkRect&, SkScalar, SkScalar, bool, const SkPaint&) override;
    107     void onDrawRRect(const SkRRect&, const SkPaint&) override;
    108     void onDrawPath(const SkPath&, const SkPaint&) override;
    109     void onDrawBitmap(const SkBitmap&, SkScalar left, SkScalar top, const SkPaint*) override;
    110     void onDrawBitmapRect(const SkBitmap&, const SkRect* src, const SkRect& dst, const SkPaint*,
    111                           SrcRectConstraint) override;
    112     void onDrawImage(const SkImage*, SkScalar left, SkScalar top, const SkPaint*) override;
    113     void onDrawImageRect(const SkImage*, const SkRect* src, const SkRect& dst,
    114                          const SkPaint*, SrcRectConstraint) override;
    115     void onDrawImageNine(const SkImage*, const SkIRect& center, const SkRect& dst,
    116                          const SkPaint*) override;
    117     void onDrawBitmapNine(const SkBitmap&, const SkIRect& center, const SkRect& dst,
    118                           const SkPaint*) override;
    119     void onDrawImageLattice(const SkImage*, const Lattice& lattice, const SkRect& dst,
    120                             const SkPaint*) override;
    121     void onDrawBitmapLattice(const SkBitmap&, const Lattice& lattice, const SkRect& dst,
    122                              const SkPaint*) override;
    123     void onDrawVerticesObject(const SkVertices*, SkBlendMode, const SkPaint&) override;
    124     void onDrawAtlas(const SkImage*, const SkRSXform[], const SkRect[], const SkColor[],
    125                      int count, SkBlendMode, const SkRect* cull, const SkPaint*) override;
    126     void onDrawShadowRec(const SkPath&, const SkDrawShadowRec&) override;
    127 
    128     void onClipRect(const SkRect& rect, SkClipOp, ClipEdgeStyle) override;
    129     void onClipRRect(const SkRRect& rrect, SkClipOp, ClipEdgeStyle) override;
    130     void onClipPath(const SkPath& path, SkClipOp, ClipEdgeStyle) override;
    131     void onClipRegion(const SkRegion& deviceRgn, SkClipOp) override;
    132 
    133     void onDrawPicture(const SkPicture*, const SkMatrix*, const SkPaint*) override;
    134 
    135     void onDrawAnnotation(const SkRect&, const char[], SkData*) override;
    136 
    137     sk_sp<SkSurface> onNewSurface(const SkImageInfo&, const SkSurfaceProps&) override;
    138 
    139     void flushMiniRecorder();
    140 
    141 private:
    142     template <typename T>
    143     T* copy(const T*);
    144 
    145     template <typename T>
    146     T* copy(const T[], size_t count);
    147 
    148     DrawPictureMode fDrawPictureMode;
    149     size_t fApproxBytesUsedBySubPictures;
    150     SkRecord* fRecord;
    151     std::unique_ptr<SkDrawableList> fDrawableList;
    152 
    153     SkMiniRecorder* fMiniRecorder;
    154 };
    155 
    156 #endif//SkRecorder_DEFINED
    157