1 /*
2 * Copyright 2016 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/SkMatrix.h"
9 #include "include/core/SkPictureRecorder.h"
10 #include "src/core/SkPictureData.h"
11 #include "src/core/SkPicturePlayback.h"
12 #include "src/core/SkPictureRecord.h"
13 #include "src/core/SkRecordDraw.h"
14 #include "src/core/SkRecordedDrawable.h"
15
16 #if defined(SK_GANESH)
17 #include "include/private/chromium/Slug.h"
18 #endif
19
onApproximateBytesUsed()20 size_t SkRecordedDrawable::onApproximateBytesUsed() {
21 size_t drawablesSize = 0;
22 if (fDrawableList) {
23 for (auto&& drawable : *fDrawableList) {
24 drawablesSize += drawable->approximateBytesUsed();
25 }
26 }
27 return sizeof(*this) +
28 (fRecord ? fRecord->bytesUsed() : 0) +
29 (fBBH ? fBBH->bytesUsed() : 0) +
30 drawablesSize;
31 }
32
onDraw(SkCanvas * canvas)33 void SkRecordedDrawable::onDraw(SkCanvas* canvas) {
34 SkDrawable* const* drawables = nullptr;
35 int drawableCount = 0;
36 if (fDrawableList) {
37 drawables = fDrawableList->begin();
38 drawableCount = fDrawableList->count();
39 }
40 SkRecordDraw(*fRecord, canvas, nullptr, drawables, drawableCount, fBBH.get(), nullptr);
41 }
42
onNewPictureSnapshot()43 SkPicture* SkRecordedDrawable::onNewPictureSnapshot() {
44 // TODO: should we plumb-down the BBHFactory and recordFlags from our host
45 // PictureRecorder?
46 std::unique_ptr<SkBigPicture::SnapshotArray> pictList{
47 fDrawableList ? fDrawableList->newDrawableSnapshot() : nullptr
48 };
49
50 size_t subPictureBytes = 0;
51 for (int i = 0; pictList && i < pictList->count(); i++) {
52 subPictureBytes += pictList->begin()[i]->approximateBytesUsed();
53 }
54 return new SkBigPicture(fBounds, fRecord, std::move(pictList), fBBH, subPictureBytes);
55 }
56
flatten(SkWriteBuffer & buffer) const57 void SkRecordedDrawable::flatten(SkWriteBuffer& buffer) const {
58 // Write the bounds.
59 buffer.writeRect(fBounds);
60
61 // Create an SkPictureRecord to record the draw commands.
62 SkPictInfo info;
63 SkPictureRecord pictureRecord(SkISize::Make(fBounds.width(), fBounds.height()), 0);
64
65 // If the query contains the whole picture, don't bother with the bounding box hierarchy.
66 SkBBoxHierarchy* bbh;
67 if (pictureRecord.getLocalClipBounds().contains(fBounds)) {
68 bbh = nullptr;
69 } else {
70 bbh = fBBH.get();
71 }
72
73 // Record the draw commands.
74 SkDrawable* const* drawables = fDrawableList ? fDrawableList->begin() : nullptr;
75 int drawableCount = fDrawableList ? fDrawableList->count() : 0;
76 pictureRecord.beginRecording();
77 SkRecordDraw(*fRecord, &pictureRecord, nullptr, drawables, drawableCount, bbh, nullptr);
78 pictureRecord.endRecording();
79
80 // Flatten the recorded commands and drawables.
81 SkPictureData pictureData(pictureRecord, info);
82 pictureData.flatten(buffer);
83 }
84
CreateProc(SkReadBuffer & buffer)85 sk_sp<SkFlattenable> SkRecordedDrawable::CreateProc(SkReadBuffer& buffer) {
86 // Read the bounds.
87 SkRect bounds;
88 buffer.readRect(&bounds);
89
90 // Unflatten into a SkPictureData.
91 SkPictInfo info;
92 info.setVersion(buffer.getVersion());
93 info.fCullRect = bounds;
94 std::unique_ptr<SkPictureData> pictureData(SkPictureData::CreateFromBuffer(buffer, info));
95 if (!pictureData) {
96 return nullptr;
97 }
98
99 // Create a drawable.
100 SkPicturePlayback playback(pictureData.get());
101 SkPictureRecorder recorder;
102 playback.draw(recorder.beginRecording(bounds), nullptr, &buffer);
103 return recorder.finishRecordingAsDrawable();
104 }
105