/*
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* Copyright 2015 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef SkBigPicture_DEFINED
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#define SkBigPicture_DEFINED
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#include "SkNoncopyable.h"
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#include "SkOnce.h"
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#include "SkPicture.h"
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#include "SkRect.h"
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#include "SkTemplates.h"
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class SkBBoxHierarchy;
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class SkMatrix;
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class SkRecord;
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// An implementation of SkPicture supporting an arbitrary number of drawing commands.
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class SkBigPicture final : public SkPicture {
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public:
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// An array of refcounted const SkPicture pointers.
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class SnapshotArray : ::SkNoncopyable {
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public:
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SnapshotArray(const SkPicture* pics[], int count) : fPics(pics), fCount(count) {}
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~SnapshotArray() { for (int i = 0; i < fCount; i++) { fPics[i]->unref(); } }
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const SkPicture* const* begin() const { return fPics; }
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int count() const { return fCount; }
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private:
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SkAutoTMalloc<const SkPicture*> fPics;
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int fCount;
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};
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SkBigPicture(const SkRect& cull,
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SkRecord*, // We take ownership of the caller's ref.
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SnapshotArray*, // We take exclusive ownership.
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SkBBoxHierarchy*, // We take ownership of the caller's ref.
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size_t approxBytesUsedBySubPictures);
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// SkPicture overrides
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void playback(SkCanvas*, AbortCallback*) const override;
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SkRect cullRect() const override;
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int approximateOpCount() const override;
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size_t approximateBytesUsed() const override;
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const SkBigPicture* asSkBigPicture() const override { return this; }
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// Used by GrLayerHoister
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void partialPlayback(SkCanvas*,
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int start,
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int stop,
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const SkMatrix& initialCTM) const;
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// Used by GrRecordReplaceDraw
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const SkBBoxHierarchy* bbh() const { return fBBH.get(); }
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const SkRecord* record() const { return fRecord.get(); }
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private:
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int drawableCount() const;
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SkPicture const* const* drawablePicts() const;
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const SkRect fCullRect;
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const size_t fApproxBytesUsedBySubPictures;
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sk_sp<const SkRecord> fRecord;
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std::unique_ptr<const SnapshotArray> fDrawablePicts;
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sk_sp<const SkBBoxHierarchy> fBBH;
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};
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#endif//SkBigPicture_DEFINED
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