1 /* 2 * Copyright 2015 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 SkBigPicture_DEFINED 9 #define SkBigPicture_DEFINED 10 11 #include "include/core/SkM44.h" 12 #include "include/core/SkPicture.h" 13 #include "include/core/SkRect.h" 14 #include "include/private/SkNoncopyable.h" 15 #include "include/private/SkOnce.h" 16 #include "include/private/SkTemplates.h" 17 18 class SkBBoxHierarchy; 19 class SkMatrix; 20 class SkRecord; 21 22 // An implementation of SkPicture supporting an arbitrary number of drawing commands. 23 class SkBigPicture final : public SkPicture { 24 public: 25 // An array of refcounted const SkPicture pointers. 26 class SnapshotArray : ::SkNoncopyable { 27 public: SnapshotArray(const SkPicture * pics[],int count)28 SnapshotArray(const SkPicture* pics[], int count) : fPics(pics), fCount(count) {} ~SnapshotArray()29 ~SnapshotArray() { for (int i = 0; i < fCount; i++) { fPics[i]->unref(); } } 30 begin()31 const SkPicture* const* begin() const { return fPics; } count()32 int count() const { return fCount; } 33 private: 34 SkAutoTMalloc<const SkPicture*> fPics; 35 int fCount; 36 }; 37 38 SkBigPicture(const SkRect& cull, 39 sk_sp<SkRecord>, 40 std::unique_ptr<SnapshotArray>, 41 sk_sp<SkBBoxHierarchy>, 42 size_t approxBytesUsedBySubPictures); 43 44 45 // SkPicture overrides 46 void playback(SkCanvas*, AbortCallback*) const override; 47 SkRect cullRect() const override; 48 int approximateOpCount(bool nested) const override; 49 size_t approximateBytesUsed() const override; asSkBigPicture()50 const SkBigPicture* asSkBigPicture() const override { return this; } 51 52 // Used by GrLayerHoister 53 void partialPlayback(SkCanvas*, 54 int start, 55 int stop, 56 const SkM44& initialCTM) const; 57 // Used by GrRecordReplaceDraw bbh()58 const SkBBoxHierarchy* bbh() const { return fBBH.get(); } record()59 const SkRecord* record() const { return fRecord.get(); } 60 61 private: 62 int drawableCount() const; 63 SkPicture const* const* drawablePicts() const; 64 65 const SkRect fCullRect; 66 const size_t fApproxBytesUsedBySubPictures; 67 sk_sp<const SkRecord> fRecord; 68 std::unique_ptr<const SnapshotArray> fDrawablePicts; 69 sk_sp<const SkBBoxHierarchy> fBBH; 70 }; 71 72 #endif//SkBigPicture_DEFINED 73