jcs.org
Serenity Operating System
1/*
2 * Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
3 *
4 * SPDX-License-Identifier: BSD-2-Clause
5 */
6
7#include "AppletManager.h"
8#include "Compositor.h"
9#include "EventLoop.h"
10#include "Screen.h"
11#include "WindowManager.h"
12#include <Kernel/API/Graphics.h>
13#include <LibCore/ConfigFile.h>
14#include <LibCore/DeprecatedFile.h>
15#include <LibCore/DirIterator.h>
16#include <LibCore/System.h>
17#include <LibGfx/Palette.h>
18#include <LibGfx/SystemTheme.h>
19#include <LibMain/Main.h>
20#include <signal.h>
21
22namespace WindowServer {
23RefPtr<Core::ConfigFile> g_config;
24}
25
26ErrorOr<int> serenity_main(Main::Arguments)
27{
28 TRY(Core::System::pledge("stdio video thread sendfd recvfd accept rpath wpath cpath unix proc sigaction exec tty"));
29 TRY(Core::System::unveil("/res", "r"));
30 TRY(Core::System::unveil("/tmp", "cw"));
31 TRY(Core::System::unveil("/etc/WindowServer.ini", "rwc"));
32 TRY(Core::System::unveil("/etc/Keyboard.ini", "r"));
33 TRY(Core::System::unveil("/dev/tty", "rw"));
34 TRY(Core::System::unveil("/dev/gpu/", "rw"));
35 TRY(Core::System::unveil("/dev/input/", "rw"));
36 TRY(Core::System::unveil("/bin/keymap", "x"));
37 TRY(Core::System::unveil("/sys/kernel/keymap", "r"));
38 TRY(Core::System::unveil("/sys/kernel/processes", "r"));
39 TRY(Core::System::unveil("/etc/passwd", "r"));
40
41 struct sigaction act = {};
42 act.sa_flags = SA_NOCLDWAIT;
43 act.sa_handler = SIG_IGN;
44 TRY(Core::System::sigaction(SIGCHLD, &act, nullptr));
45 TRY(Core::System::pledge("stdio video thread sendfd recvfd accept rpath wpath cpath unix proc exec tty"));
46
47 WindowServer::g_config = TRY(Core::ConfigFile::open("/etc/WindowServer.ini", Core::ConfigFile::AllowWriting::Yes));
48 auto theme_name = WindowServer::g_config->read_entry("Theme", "Name", "Default");
49
50 Optional<DeprecatedString> custom_color_scheme_path = OptionalNone();
51 if (WindowServer::g_config->read_bool_entry("Theme", "LoadCustomColorScheme", false))
52 custom_color_scheme_path = WindowServer::g_config->read_entry("Theme", "CustomColorSchemePath");
53
54 auto theme = TRY(Gfx::load_system_theme(DeprecatedString::formatted("/res/themes/{}.ini", theme_name), custom_color_scheme_path));
55 Gfx::set_system_theme(theme);
56 auto palette = Gfx::PaletteImpl::create_with_anonymous_buffer(theme);
57
58 auto default_font_query = WindowServer::g_config->read_entry("Fonts", "Default", "Katica 10 400 0");
59 auto fixed_width_font_query = WindowServer::g_config->read_entry("Fonts", "FixedWidth", "Csilla 10 400 0");
60 auto window_title_font_query = WindowServer::g_config->read_entry("Fonts", "WindowTitle", "Katica 10 700 0");
61
62 Gfx::FontDatabase::set_default_font_query(default_font_query);
63 Gfx::FontDatabase::set_fixed_width_font_query(fixed_width_font_query);
64 Gfx::FontDatabase::set_window_title_font_query(window_title_font_query);
65
66 {
67 // FIXME: Map switched tty from screens.
68 // FIXME: Gracefully cleanup the TTY graphics mode.
69 int tty_fd = TRY(Core::System::open("/dev/tty"sv, O_RDWR));
70 TRY(Core::System::ioctl(tty_fd, KDSETMODE, KD_GRAPHICS));
71 TRY(Core::System::close(tty_fd));
72 }
73
74 WindowServer::EventLoop loop;
75
76 TRY(Core::System::pledge("stdio video thread sendfd recvfd accept rpath wpath cpath unix proc exec"));
77
78 // First check which screens are explicitly configured
79 {
80 AK::HashTable<DeprecatedString> fb_devices_configured;
81 WindowServer::ScreenLayout screen_layout;
82 DeprecatedString error_msg;
83
84 auto add_unconfigured_display_connector_devices = [&]() -> ErrorOr<void> {
85 // Enumerate the /dev/gpu/connectorX devices and try to set up any ones we find that we haven't already used
86 Core::DirIterator di("/dev/gpu", Core::DirIterator::SkipParentAndBaseDir);
87 while (di.has_next()) {
88 auto path = di.next_path();
89 if (!path.starts_with("connector"sv))
90 continue;
91 auto full_path = DeprecatedString::formatted("/dev/gpu/{}", path);
92 if (!Core::DeprecatedFile::is_device(full_path))
93 continue;
94 auto display_connector_fd = TRY(Core::System::open(full_path, O_RDWR | O_CLOEXEC));
95 if (int rc = graphics_connector_set_responsible(display_connector_fd); rc != 0)
96 return Error::from_syscall("graphics_connector_set_responsible"sv, rc);
97 TRY(Core::System::close(display_connector_fd));
98 if (fb_devices_configured.find(full_path) != fb_devices_configured.end())
99 continue;
100 if (!screen_layout.try_auto_add_display_connector(full_path))
101 dbgln("Could not auto-add display connector device {} to screen layout", full_path);
102 }
103 return {};
104 };
105
106 auto apply_and_generate_generic_screen_layout = [&]() -> ErrorOr<bool> {
107 screen_layout = {};
108 fb_devices_configured = {};
109
110 TRY(add_unconfigured_display_connector_devices());
111 if (!WindowServer::Screen::apply_layout(move(screen_layout), error_msg)) {
112 dbgln("Failed to apply generated fallback screen layout: {}", error_msg);
113 return false;
114 }
115
116 dbgln("Applied generated fallback screen layout!");
117 return true;
118 };
119
120 if (screen_layout.load_config(*WindowServer::g_config, &error_msg)) {
121 for (auto& screen_info : screen_layout.screens)
122 if (screen_info.mode == WindowServer::ScreenLayout::Screen::Mode::Device)
123 fb_devices_configured.set(screen_info.device.value());
124
125 TRY(add_unconfigured_display_connector_devices());
126
127 if (!WindowServer::Screen::apply_layout(move(screen_layout), error_msg)) {
128 dbgln("Error applying screen layout: {}", error_msg);
129 TRY(apply_and_generate_generic_screen_layout());
130 }
131 } else {
132 dbgln("Error loading screen configuration: {}", error_msg);
133 TRY(apply_and_generate_generic_screen_layout());
134 }
135 }
136
137 auto& screen_input = WindowServer::ScreenInput::the();
138 screen_input.set_cursor_location(WindowServer::Screen::main().rect().center());
139 double f = atof(WindowServer::g_config->read_entry("Mouse", "AccelerationFactor", "1.0").characters());
140 if (f < WindowServer::mouse_accel_min || f > WindowServer::mouse_accel_max) {
141 dbgln("Mouse.AccelerationFactor out of range resetting to 1.0");
142 f = 1.0;
143 WindowServer::g_config->write_entry("Mouse", "AccelerationFactor", "1.0");
144 }
145 screen_input.set_acceleration_factor(f);
146 screen_input.set_scroll_step_size(WindowServer::g_config->read_num_entry("Mouse", "ScrollStepSize", 4));
147
148 WindowServer::Compositor::the();
149 auto wm = WindowServer::WindowManager::construct(*palette);
150 auto am = WindowServer::AppletManager::construct();
151 auto mm = WindowServer::MenuManager::construct();
152
153 TRY(Core::System::unveil("/tmp", ""));
154
155 TRY(Core::System::unveil(nullptr, nullptr));
156
157 dbgln("Entering WindowServer main loop");
158 loop.exec();
159 VERIFY_NOT_REACHED();
160}