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 "include/core/SkBBHFactory.h"
9 #include "src/core/SkBigPicture.h"
10 #include "src/core/SkPictureCommon.h"
11 #include "src/core/SkRecord.h"
12 #include "src/core/SkRecordDraw.h"
13 #include "src/core/SkTraceEvent.h"
14
SkBigPicture(const SkRect & cull,sk_sp<SkRecord> record,std::unique_ptr<SnapshotArray> drawablePicts,sk_sp<SkBBoxHierarchy> bbh,size_t approxBytesUsedBySubPictures)15 SkBigPicture::SkBigPicture(const SkRect& cull,
16 sk_sp<SkRecord> record,
17 std::unique_ptr<SnapshotArray> drawablePicts,
18 sk_sp<SkBBoxHierarchy> bbh,
19 size_t approxBytesUsedBySubPictures)
20 : fCullRect(cull)
21 , fApproxBytesUsedBySubPictures(approxBytesUsedBySubPictures)
22 , fRecord(std::move(record))
23 , fDrawablePicts(std::move(drawablePicts))
24 , fBBH(std::move(bbh))
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 SkM44 & initialCTM) const42 void SkBigPicture::partialPlayback(SkCanvas* canvas,
43 int start,
44 int stop,
45 const SkM44& initialCTM) const {
46 SkASSERT(canvas);
47 SkRecordPartialDraw(*fRecord,
48 canvas,
49 this->drawablePicts(),
50 this->drawableCount(),
51 start,
52 stop,
53 initialCTM);
54 }
55
56 struct NestedApproxOpCounter {
57 int fCount = 0;
58
operator ()NestedApproxOpCounter59 template <typename T> void operator()(const T& op) {
60 fCount += 1;
61 }
operator ()NestedApproxOpCounter62 void operator()(const SkRecords::DrawPicture& op) {
63 fCount += op.picture->approximateOpCount(true);
64 }
65 };
66
cullRect() const67 SkRect SkBigPicture::cullRect() const { return fCullRect; }
approximateOpCount(bool nested) const68 int SkBigPicture::approximateOpCount(bool nested) const {
69 if (nested) {
70 NestedApproxOpCounter visitor;
71 for (int i = 0; i < fRecord->count(); i++) {
72 fRecord->visit(i, visitor);
73 }
74 return visitor.fCount;
75 } else {
76 return fRecord->count();
77 }
78 }
approximateBytesUsed() const79 size_t SkBigPicture::approximateBytesUsed() const {
80 size_t bytes = sizeof(*this) + fRecord->bytesUsed() + fApproxBytesUsedBySubPictures;
81 if (fBBH) { bytes += fBBH->bytesUsed(); }
82 return bytes;
83 }
84
drawableCount() const85 int SkBigPicture::drawableCount() const {
86 return fDrawablePicts ? fDrawablePicts->count() : 0;
87 }
88
drawablePicts() const89 SkPicture const* const* SkBigPicture::drawablePicts() const {
90 return fDrawablePicts ? fDrawablePicts->begin() : nullptr;
91 }
92
93