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