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/base/SkNoncopyable.h" 15 #include "include/private/base/SkOnce.h" 16 #include "include/private/base/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 // This is called "big" because there used to be a "mini" that only supported a subset of the 24 // calls as an optimization. 25 class SkBigPicture final : public SkPicture { 26 public: 27 // An array of refcounted const SkPicture pointers. 28 class SnapshotArray : ::SkNoncopyable { 29 public: SnapshotArray(const SkPicture * pics[],int count)30 SnapshotArray(const SkPicture* pics[], int count) : fPics(pics), fCount(count) {} ~SnapshotArray()31 ~SnapshotArray() { for (int i = 0; i < fCount; i++) { fPics[i]->unref(); } } 32 begin()33 const SkPicture* const* begin() const { return fPics; } count()34 int count() const { return fCount; } 35 private: 36 skia_private::AutoTMalloc<const SkPicture*> fPics; 37 int fCount; 38 }; 39 40 SkBigPicture(const SkRect& cull, 41 sk_sp<SkRecord>, 42 std::unique_ptr<SnapshotArray>, 43 sk_sp<SkBBoxHierarchy>, 44 size_t approxBytesUsedBySubPictures); 45 46 47 // SkPicture overrides 48 void playback(SkCanvas*, AbortCallback*) const override; 49 SkRect cullRect() const override; 50 int approximateOpCount(bool nested) const override; 51 size_t approximateBytesUsed() const override; asSkBigPicture()52 const SkBigPicture* asSkBigPicture() const override { return this; } 53 54 // Used by GrLayerHoister 55 void partialPlayback(SkCanvas*, 56 int start, 57 int stop, 58 const SkM44& initialCTM) const; 59 // Used by GrRecordReplaceDraw bbh()60 const SkBBoxHierarchy* bbh() const { return fBBH.get(); } record()61 const SkRecord* record() const { return fRecord.get(); } 62 63 private: 64 int drawableCount() const; 65 SkPicture const* const* drawablePicts() const; 66 67 const SkRect fCullRect; 68 const size_t fApproxBytesUsedBySubPictures; 69 sk_sp<const SkRecord> fRecord; 70 std::unique_ptr<const SnapshotArray> fDrawablePicts; 71 sk_sp<const SkBBoxHierarchy> fBBH; 72 }; 73 74 #endif//SkBigPicture_DEFINED 75