1 /*
2  * Copyright (C) 2018 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 #pragma once
18 
19 #include <private/hwui/WebViewFunctor.h>
20 #ifdef __ANDROID__ // Layoutlib does not support render thread
21 #include <renderthread/RenderProxy.h>
22 #else
23 #include <utils/Log.h>
24 #endif
25 
26 #include <utils/LightRefBase.h>
27 #include <mutex>
28 #include <vector>
29 
30 namespace android::uirenderer {
31 
32 class WebViewFunctorManager;
33 
34 class WebViewFunctor {
35 public:
36     WebViewFunctor(void* data, const WebViewFunctorCallbacks& callbacks, RenderMode functorMode);
37     ~WebViewFunctor();
38 
39     class Handle : public LightRefBase<Handle> {
40     public:
~Handle()41         ~Handle() {
42 #ifdef __ANDROID__ // Layoutlib does not support render thread
43             renderthread::RenderProxy::destroyFunctor(id());
44 #endif
45         }
46 
id()47         int id() const { return mReference.id(); }
48 
sync(const WebViewSyncData & syncData)49         void sync(const WebViewSyncData& syncData) const { mReference.sync(syncData); }
50 
drawGl(const DrawGlInfo & drawInfo)51         void drawGl(const DrawGlInfo& drawInfo) const { mReference.drawGl(drawInfo); }
52 
initVk(const VkFunctorInitParams & params)53         void initVk(const VkFunctorInitParams& params) { mReference.initVk(params); }
54 
drawVk(const VkFunctorDrawParams & params)55         void drawVk(const VkFunctorDrawParams& params) { mReference.drawVk(params); }
56 
postDrawVk()57         void postDrawVk() { mReference.postDrawVk(); }
58 
59     private:
60         friend class WebViewFunctor;
61 
Handle(WebViewFunctor & ref)62         Handle(WebViewFunctor& ref) : mReference(ref) {}
63 
64         WebViewFunctor& mReference;
65     };
66 
id()67     int id() const { return mFunctor; }
68     void sync(const WebViewSyncData& syncData) const;
69     void drawGl(const DrawGlInfo& drawInfo);
70     void initVk(const VkFunctorInitParams& params);
71     void drawVk(const VkFunctorDrawParams& params);
72     void postDrawVk();
73     void destroyContext();
74 
createHandle()75     sp<Handle> createHandle() {
76         LOG_ALWAYS_FATAL_IF(mCreatedHandle);
77         mCreatedHandle = true;
78         return sp<Handle>{new Handle(*this)};
79     }
80 
81 private:
82     WebViewFunctorCallbacks mCallbacks;
83     void* const mData;
84     int mFunctor;
85     RenderMode mMode;
86     bool mHasContext = false;
87     bool mCreatedHandle = false;
88 };
89 
90 class WebViewFunctorManager {
91 public:
92     static WebViewFunctorManager& instance();
93 
94     int createFunctor(void* data, const WebViewFunctorCallbacks& callbacks, RenderMode functorMode);
95     void releaseFunctor(int functor);
96     void onContextDestroyed();
97     void destroyFunctor(int functor);
98 
99     sp<WebViewFunctor::Handle> handleFor(int functor);
100 
101 private:
102     WebViewFunctorManager() = default;
103     ~WebViewFunctorManager() = default;
104 
105     std::mutex mLock;
106     std::vector<std::unique_ptr<WebViewFunctor>> mFunctors;
107     std::vector<sp<WebViewFunctor::Handle>> mActiveFunctors;
108 };
109 
110 }  // namespace android::uirenderer
111