1 /*
2 * Copyright (C) 2019 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_server.h"
18
19 #include <android-base/logging.h>
20
21 #include <wayland-server-core.h>
22 #include <wayland-server-protocol.h>
23
24 #include "host/libs/wayland/wayland_compositor.h"
25 #include "host/libs/wayland/wayland_dmabuf.h"
26 #include "host/libs/wayland/wayland_seat.h"
27 #include "host/libs/wayland/wayland_shell.h"
28 #include "host/libs/wayland/wayland_subcompositor.h"
29 #include "host/libs/wayland/wayland_surface.h"
30 #include "host/libs/wayland/wayland_utils.h"
31 #include "host/libs/wayland/wayland_virtio_gpu_metadata.h"
32
33 namespace wayland {
34 namespace internal {
35
36 struct WaylandServerState {
37 struct wl_display* display_ = nullptr;
38
39 Surfaces surfaces_;
40 };
41
42 } // namespace internal
43
WaylandServer(int wayland_socket_fd,bool wayland_frames_are_rgba)44 WaylandServer::WaylandServer(int wayland_socket_fd,
45 bool wayland_frames_are_rgba) {
46 server_thread_ =
47 std::thread([this, wayland_socket_fd, wayland_frames_are_rgba]() {
48 ServerLoop(wayland_socket_fd, wayland_frames_are_rgba);
49 });
50
51 std::unique_lock<std::mutex> lock(server_ready_mutex_);
52 server_ready_cv_.wait(lock, [&]{return server_ready_; });
53 }
54
~WaylandServer()55 WaylandServer::~WaylandServer() {
56 wl_display_terminate(server_state_->display_);
57 server_thread_.join();
58 }
59
ServerLoop(int fd,bool frames_are_rgba)60 void WaylandServer::ServerLoop(int fd, bool frames_are_rgba) {
61 server_state_.reset(new internal::WaylandServerState());
62
63 server_state_->surfaces_.SetFramesAreRGBA(frames_are_rgba);
64
65 server_state_->display_ = wl_display_create();
66 CHECK(server_state_->display_ != nullptr)
67 << "Failed to start WaylandServer: failed to create display";
68
69 if (fd < 0) {
70 const char* socket = wl_display_add_socket_auto(server_state_->display_);
71 CHECK(socket != nullptr)
72 << "Failed to start WaylandServer: failed to create socket";
73
74 LOG(INFO) << "WaylandServer running on socket " << socket;
75 } else {
76 CHECK(wl_display_add_socket_fd(server_state_->display_, fd) == 0)
77 << "Failed to start WaylandServer: failed to use fd " << fd;
78
79 LOG(INFO) << "WaylandServer running on socket " << fd;
80 }
81
82 wl_display_init_shm(server_state_->display_);
83
84 BindCompositorInterface(server_state_->display_, &server_state_->surfaces_);
85 BindVirtioGpuMetadataInterface(server_state_->display_,
86 &server_state_->surfaces_);
87 BindDmabufInterface(server_state_->display_);
88 BindSubcompositorInterface(server_state_->display_);
89 BindSeatInterface(server_state_->display_);
90 BindShellInterface(server_state_->display_);
91
92 {
93 std::lock_guard<std::mutex> lock(server_ready_mutex_);
94 server_ready_ = true;
95 }
96 server_ready_cv_.notify_one();
97
98 wl_display_run(server_state_->display_);
99 wl_display_destroy(server_state_->display_);
100 }
101
SetFrameCallback(Surfaces::FrameCallback callback)102 void WaylandServer::SetFrameCallback(Surfaces::FrameCallback callback) {
103 server_state_->surfaces_.SetFrameCallback(std::move(callback));
104 }
105
SetDisplayEventCallback(DisplayEventCallback callback)106 void WaylandServer::SetDisplayEventCallback(DisplayEventCallback callback) {
107 server_state_->surfaces_.SetDisplayEventCallback(std::move(callback));
108 }
109
110 } // namespace wayland
111