1 /*
2  * Copyright (C) 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 "host/libs/wayland/wayland_surfaces.h"
18 
19 #include <android-base/logging.h>
20 #include <wayland-server-protocol.h>
21 
22 #include "host/libs/wayland/wayland_surface.h"
23 
24 namespace wayland {
25 
SetFrameCallback(FrameCallback callback)26 void Surfaces::SetFrameCallback(FrameCallback callback) {
27   std::unique_lock<std::mutex> lock(callback_mutex_);
28   callback_.emplace(std::move(callback));
29 }
30 
SetDisplayEventCallback(DisplayEventCallback callback)31 void Surfaces::SetDisplayEventCallback(DisplayEventCallback callback) {
32   std::unique_lock<std::mutex> lock(callback_mutex_);
33   event_callback_.emplace(std::move(callback));
34 }
35 
HandleSurfaceFrame(std::uint32_t display_number,std::uint32_t frame_width,std::uint32_t frame_height,std::uint32_t frame_stride_bytes,std::uint8_t * frame_bytes)36 void Surfaces::HandleSurfaceFrame(std::uint32_t display_number,
37                                   std::uint32_t frame_width,
38                                   std::uint32_t frame_height,
39                                   std::uint32_t frame_stride_bytes,
40                                   std::uint8_t* frame_bytes) {
41   std::unique_lock<std::mutex> lock(callback_mutex_);
42   if (callback_) {
43     (callback_.value())(display_number, frame_width, frame_height,
44                         frame_stride_bytes, frame_bytes);
45   }
46 }
47 
HandleSurfaceCreated(std::uint32_t display_number,std::uint32_t display_width,std::uint32_t display_height)48 void Surfaces::HandleSurfaceCreated(std::uint32_t display_number,
49                                     std::uint32_t display_width,
50                                     std::uint32_t display_height) {
51   const DisplayEvent event{DisplayCreatedEvent{
52       .display_number = display_number,
53       .display_width = display_width,
54       .display_height = display_height,
55   }};
56 
57   std::unique_lock<std::mutex> lock(callback_mutex_);
58   if (event_callback_) {
59     (event_callback_.value())(event);
60   }
61 }
62 
HandleSurfaceDestroyed(std::uint32_t display_number)63 void Surfaces::HandleSurfaceDestroyed(std::uint32_t display_number) {
64   const DisplayEvent event{DisplayDestroyedEvent{
65       .display_number = display_number,
66   }};
67 
68   std::unique_lock<std::mutex> lock(callback_mutex_);
69   if (event_callback_) {
70     (event_callback_.value())(event);
71   }
72 }
73 
74 }  // namespace wayland