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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 "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:
     23     SkDrawableList() {}
     24     ~SkDrawableList();
     25 
     26     int count() const { return fArray.count(); }
     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 
     49     size_t approxBytesUsedBySubPictures() const { return fApproxBytesUsedBySubPictures; }
     50 
     51     SkDrawableList* getDrawableList() const { return fDrawableList.get(); }
     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;
     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