1 /*
2  * Copyright 2020 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 <gui/Surface.h>
18 #include <gui/bufferqueue/2.0/H2BGraphicBufferProducer.h>
19 
20 #include "include/bufferqueueconverter/BufferQueueConverter.h"
21 
22 
23 using ::android::Surface;
24 using ::android::IGraphicBufferProducer;
25 using ::android::hardware::graphics::bufferqueue::V2_0::utils::H2BGraphicBufferProducer;
26 
27 
28 namespace android {
29 
30 struct SurfaceHolder {
31     sp<Surface> surface;
SurfaceHolderandroid::SurfaceHolder32     SurfaceHolder(const sp<Surface>& s) : surface(s) {}
33 };
34 
35 /**
36  * Custom deleter for SurfaceHolder unique pointer
37  */
destroySurfaceHolder(SurfaceHolder * surfaceHolder)38 void destroySurfaceHolder(SurfaceHolder* surfaceHolder) {
39     delete surfaceHolder;
40 }
41 
42 
getSurfaceFromHGBP(const sp<HGraphicBufferProducer> & token)43 SurfaceHolderUniquePtr getSurfaceFromHGBP(const sp<HGraphicBufferProducer>& token) {
44     if (token == nullptr) {
45         ALOGE("Passed IGraphicBufferProducer handle is invalid.");
46         return SurfaceHolderUniquePtr(nullptr, nullptr);
47     }
48 
49     sp<IGraphicBufferProducer> bufferProducer = new H2BGraphicBufferProducer(token);
50     if (bufferProducer == nullptr) {
51         ALOGE("Failed to get IGraphicBufferProducer.");
52         return SurfaceHolderUniquePtr(nullptr, nullptr);
53     }
54 
55     sp<Surface> newSurface(new Surface(bufferProducer, true));
56     if (newSurface == nullptr) {
57         ALOGE("Failed to create Surface from HGBP.");
58         return SurfaceHolderUniquePtr(nullptr, nullptr);
59     }
60 
61     return SurfaceHolderUniquePtr(new SurfaceHolder(newSurface), destroySurfaceHolder);
62 }
63 
64 
getNativeWindow(SurfaceHolder * handle)65 ANativeWindow* getNativeWindow(SurfaceHolder* handle) {
66     if (handle == nullptr) {
67         ALOGE("SurfaceHolder is invalid.");
68         return nullptr;
69     }
70 
71     return static_cast<ANativeWindow*>(handle->surface.get());
72 }
73 
74 } // namespace android
75