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 #include "SkBBoxHierarchy.h"
9 #include "SkBigPicture.h"
10 #include "SkPictureCommon.h"
11 #include "SkRecord.h"
12 #include "SkRecordDraw.h"
13 #include "SkTraceEvent.h"
14 
SkBigPicture(const SkRect & cull,SkRecord * record,SnapshotArray * drawablePicts,SkBBoxHierarchy * bbh,size_t approxBytesUsedBySubPictures)15 SkBigPicture::SkBigPicture(const SkRect& cull,
16                            SkRecord* record,
17                            SnapshotArray* drawablePicts,
18                            SkBBoxHierarchy* bbh,
19                            size_t approxBytesUsedBySubPictures)
20     : fCullRect(cull)
21     , fApproxBytesUsedBySubPictures(approxBytesUsedBySubPictures)
22     , fRecord(record)               // Take ownership of caller's ref.
23     , fDrawablePicts(drawablePicts) // Take ownership.
24     , fBBH(bbh)                     // Take ownership of caller's ref.
25 {}
26 
playback(SkCanvas * canvas,AbortCallback * callback) const27 void SkBigPicture::playback(SkCanvas* canvas, AbortCallback* callback) const {
28     SkASSERT(canvas);
29 
30     // If the query contains the whole picture, don't bother with the BBH.
31     const bool useBBH = !canvas->getLocalClipBounds().contains(this->cullRect());
32 
33     SkRecordDraw(*fRecord,
34                  canvas,
35                  this->drawablePicts(),
36                  nullptr,
37                  this->drawableCount(),
38                  useBBH ? fBBH.get() : nullptr,
39                  callback);
40 }
41 
partialPlayback(SkCanvas * canvas,int start,int stop,const SkMatrix & initialCTM) const42 void SkBigPicture::partialPlayback(SkCanvas* canvas,
43                                    int start,
44                                    int stop,
45                                    const SkMatrix& initialCTM) const {
46     SkASSERT(canvas);
47     SkRecordPartialDraw(*fRecord,
48                         canvas,
49                         this->drawablePicts(),
50                         this->drawableCount(),
51                         start,
52                         stop,
53                         initialCTM);
54 }
55 
cullRect() const56 SkRect SkBigPicture::cullRect()            const { return fCullRect; }
approximateOpCount() const57 int    SkBigPicture::approximateOpCount()   const { return fRecord->count(); }
approximateBytesUsed() const58 size_t SkBigPicture::approximateBytesUsed() const {
59     size_t bytes = sizeof(*this) + fRecord->bytesUsed() + fApproxBytesUsedBySubPictures;
60     if (fBBH) { bytes += fBBH->bytesUsed(); }
61     return bytes;
62 }
63 
drawableCount() const64 int SkBigPicture::drawableCount() const {
65     return fDrawablePicts ? fDrawablePicts->count() : 0;
66 }
67 
drawablePicts() const68 SkPicture const* const* SkBigPicture::drawablePicts() const {
69     return fDrawablePicts ? fDrawablePicts->begin() : nullptr;
70 }
71 
72