DisplayList.cpp revision 0df6209a02d0ea99d2dff3a46ed9febd5925df4b 
1/*
2 * Copyright (C) 2013 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include <SkCanvas.h>
18#include <algorithm>
19
20#include <utils/Trace.h>
21
22#include "DamageAccumulator.h"
23#include "Debug.h"
24#include "DisplayList.h"
25#include "RecordedOp.h"
26#include "RenderNode.h"
27#include "VectorDrawable.h"
28
29namespace android {
30namespace uirenderer {
31
32DisplayList::DisplayList()
33        : projectionReceiveIndex(-1)
34        , stdAllocator(allocator)
35        , chunks(stdAllocator)
36        , ops(stdAllocator)
37        , children(stdAllocator)
38        , bitmapResources(stdAllocator)
39        , pathResources(stdAllocator)
40        , patchResources(stdAllocator)
41        , paints(stdAllocator)
42        , regions(stdAllocator)
43        , referenceHolders(stdAllocator)
44        , functors(stdAllocator)
45        , vectorDrawables(stdAllocator) {
46}
47
48DisplayList::~DisplayList() {
49    cleanupResources();
50}
51
52void DisplayList::cleanupResources() {
53    if (CC_UNLIKELY(patchResources.size())) {
54        ResourceCache& resourceCache = ResourceCache::getInstance();
55        resourceCache.lock();
56
57        for (size_t i = 0; i < patchResources.size(); i++) {
58            resourceCache.decrementRefcountLocked(patchResources[i]);
59        }
60
61        resourceCache.unlock();
62    }
63
64    for (size_t i = 0; i < pathResources.size(); i++) {
65        const SkPath* path = pathResources[i];
66        if (path->unique() && Caches::hasInstance()) {
67            Caches::getInstance().pathCache.removeDeferred(path);
68        }
69        delete path;
70    }
71
72    for (auto& iter : functors) {
73        if (iter.listener) {
74            iter.listener->onGlFunctorReleased(iter.functor);
75        }
76    }
77
78    patchResources.clear();
79    pathResources.clear();
80    paints.clear();
81    regions.clear();
82}
83
84size_t DisplayList::addChild(NodeOpType* op) {
85    referenceHolders.push_back(op->renderNode);
86    size_t index = children.size();
87    children.push_back(op);
88    return index;
89}
90
91void DisplayList::syncContents() {
92    for (auto& iter : functors) {
93        (*iter.functor)(DrawGlInfo::kModeSync, nullptr);
94    }
95    for (auto& vectorDrawable : vectorDrawables) {
96        vectorDrawable->syncProperties();
97    }
98}
99
100void DisplayList::updateChildren(std::function<void(RenderNode*)> updateFn) {
101    for (auto&& child : children) {
102        updateFn(child->renderNode);
103    }
104}
105
106bool DisplayList::prepareListAndChildren(TreeInfo& info, bool functorsNeedLayer,
107        std::function<void(RenderNode*, TreeInfo&, bool)> childFn) {
108    TextureCache& cache = Caches::getInstance().textureCache;
109    for (auto&& bitmapResource : bitmapResources) {
110        void* ownerToken = &info.canvasContext;
111        info.prepareTextures = cache.prefetchAndMarkInUse(ownerToken, bitmapResource);
112    }
113    for (auto&& op : children) {
114        RenderNode* childNode = op->renderNode;
115        info.damageAccumulator->pushTransform(&op->localMatrix);
116        bool childFunctorsNeedLayer = functorsNeedLayer; // TODO! || op->mRecordedWithPotentialStencilClip;
117        childFn(childNode, info, childFunctorsNeedLayer);
118        info.damageAccumulator->popTransform();
119    }
120
121    bool isDirty = false;
122    for (auto& vectorDrawable : vectorDrawables) {
123        // If any vector drawable in the display list needs update, damage the node.
124        if (vectorDrawable->isDirty()) {
125            isDirty = true;
126        }
127        vectorDrawable->setPropertyChangeWillBeConsumed(true);
128    }
129    return isDirty;
130}
131
132}; // namespace uirenderer
133}; // namespace android
134