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godot/core/os/os.h
Rémi Verschelde 49646383f1
Update copyright statements to 2021 
Happy new year to the wonderful Godot community!

2020 has been a tough year for most of us personally, but a good year for
Godot development nonetheless with a huge amount of work done towards Godot
4.0 and great improvements backported to the long-lived 3.2 branch.

We've had close to 400 contributors to engine code this year, authoring near
7,000 commit! (And that's only for the `master` branch and for the engine code,
there's a lot more when counting docs, demos and other first-party repos.)

Here's to a great year 2021 for all Godot users 🎆

(cherry picked from commit b5334d14f7)
2021-01-13 16:17:06 +01:00

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/*************************************************************************/
/* os.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#ifndef OS_H
#define OS_H
#include "core/engine.h"
#include "core/image.h"
#include "core/io/logger.h"
#include "core/list.h"
#include "core/os/main_loop.h"
#include "core/ustring.h"
#include "core/vector.h"
#include <stdarg.h>
class Mutex;
class OS {
static OS *singleton;
static uint64_t target_ticks;
String _execpath;
List<String> _cmdline;
bool _keep_screen_on;
bool low_processor_usage_mode;
int low_processor_usage_mode_sleep_usec;
bool _verbose_stdout;
bool _debug_stdout;
String _local_clipboard;
uint64_t _msec_splash;
bool _no_window;
int _exit_code;
int _orientation;
bool _allow_hidpi;
bool _allow_layered;
bool _use_vsync;
bool _vsync_via_compositor;
char *last_error;
void *_stack_bottom;
CompositeLogger *_logger;
bool restart_on_exit;
List<String> restart_commandline;
protected:
void _set_logger(CompositeLogger *p_logger);
public:
typedef void (*ImeCallback)(void *p_inp, String p_text, Point2 p_selection);
typedef bool (*HasServerFeatureCallback)(const String &p_feature);
enum PowerState {
POWERSTATE_UNKNOWN, /**< cannot determine power status */
POWERSTATE_ON_BATTERY, /**< Not plugged in, running on the battery */
POWERSTATE_NO_BATTERY, /**< Plugged in, no battery available */
POWERSTATE_CHARGING, /**< Plugged in, charging battery */
POWERSTATE_CHARGED /**< Plugged in, battery charged */
};
enum RenderThreadMode {
RENDER_THREAD_UNSAFE,
RENDER_THREAD_SAFE,
RENDER_SEPARATE_THREAD
};
struct VideoMode {
int width, height;
bool fullscreen;
bool resizable;
bool borderless_window;
bool maximized;
bool always_on_top;
bool use_vsync;
bool vsync_via_compositor;
bool layered;
float get_aspect() const { return (float)width / (float)height; }
VideoMode(int p_width = 1024, int p_height = 600, bool p_fullscreen = false, bool p_resizable = true, bool p_borderless_window = false, bool p_maximized = false, bool p_always_on_top = false, bool p_use_vsync = false, bool p_vsync_via_compositor = false) {
width = p_width;
height = p_height;
fullscreen = p_fullscreen;
resizable = p_resizable;
borderless_window = p_borderless_window;
maximized = p_maximized;
always_on_top = p_always_on_top;
use_vsync = p_use_vsync;
vsync_via_compositor = p_vsync_via_compositor;
layered = false;
}
};
protected:
friend class Main;
HasServerFeatureCallback has_server_feature_callback;
RenderThreadMode _render_thread_mode;
// functions used by main to initialize/deinitialize the OS
void add_logger(Logger *p_logger);
virtual void initialize_core() = 0;
virtual Error initialize(const VideoMode &p_desired, int p_video_driver, int p_audio_driver) = 0;
virtual void set_main_loop(MainLoop *p_main_loop) = 0;
virtual void delete_main_loop() = 0;
virtual void finalize() = 0;
virtual void finalize_core() = 0;
virtual void set_cmdline(const char *p_execpath, const List<String> &p_args);
virtual bool _check_internal_feature_support(const String &p_feature) = 0;
public:
typedef int64_t ProcessID;
static OS *get_singleton();
virtual void global_menu_add_item(const String &p_menu, const String &p_label, const Variant &p_signal, const Variant &p_meta){};
virtual void global_menu_add_separator(const String &p_menu){};
virtual void global_menu_remove_item(const String &p_menu, int p_idx){};
virtual void global_menu_clear(const String &p_menu){};
void print_error(const char *p_function, const char *p_file, int p_line, const char *p_code, const char *p_rationale, Logger::ErrorType p_type = Logger::ERR_ERROR);
void print(const char *p_format, ...) _PRINTF_FORMAT_ATTRIBUTE_2_3;
void printerr(const char *p_format, ...) _PRINTF_FORMAT_ATTRIBUTE_2_3;
virtual void alert(const String &p_alert, const String &p_title = "ALERT!") = 0;
virtual String get_stdin_string(bool p_block = true) = 0;
enum MouseMode {
MOUSE_MODE_VISIBLE,
MOUSE_MODE_HIDDEN,
MOUSE_MODE_CAPTURED,
MOUSE_MODE_CONFINED
};
virtual void set_mouse_mode(MouseMode p_mode);
virtual MouseMode get_mouse_mode() const;
virtual void warp_mouse_position(const Point2 &p_to) {}
virtual Point2 get_mouse_position() const = 0;
virtual int get_mouse_button_state() const = 0;
virtual void set_window_title(const String &p_title) = 0;
virtual void set_window_mouse_passthrough(const PoolVector2Array &p_region){};
virtual void set_clipboard(const String &p_text);
virtual String get_clipboard() const;
virtual void set_video_mode(const VideoMode &p_video_mode, int p_screen = 0) = 0;
virtual VideoMode get_video_mode(int p_screen = 0) const = 0;
virtual void get_fullscreen_mode_list(List<VideoMode> *p_list, int p_screen = 0) const = 0;
enum VideoDriver {
VIDEO_DRIVER_GLES3,
VIDEO_DRIVER_GLES2,
VIDEO_DRIVER_MAX,
};
virtual int get_video_driver_count() const;
virtual const char *get_video_driver_name(int p_driver) const;
virtual int get_current_video_driver() const = 0;
virtual int get_audio_driver_count() const;
virtual const char *get_audio_driver_name(int p_driver) const;
virtual int get_tablet_driver_count() const { return 0; };
virtual String get_tablet_driver_name(int p_driver) const { return ""; };
virtual String get_current_tablet_driver() const { return ""; };
virtual void set_current_tablet_driver(const String &p_driver){};
virtual PoolStringArray get_connected_midi_inputs();
virtual void open_midi_inputs();
virtual void close_midi_inputs();
virtual int get_screen_count() const { return 1; }
virtual int get_current_screen() const { return 0; }
virtual void set_current_screen(int p_screen) {}
virtual Point2 get_screen_position(int p_screen = -1) const { return Point2(); }
virtual Size2 get_screen_size(int p_screen = -1) const { return get_window_size(); }
virtual int get_screen_dpi(int p_screen = -1) const { return 72; }
virtual float get_screen_scale(int p_screen = -1) const { return 1.0; }
virtual float get_screen_max_scale() const { return 1.0; };
virtual Point2 get_window_position() const { return Vector2(); }
virtual void set_window_position(const Point2 &p_position) {}
virtual Size2 get_max_window_size() const { return Size2(); };
virtual Size2 get_min_window_size() const { return Size2(); };
virtual Size2 get_window_size() const = 0;
virtual Size2 get_real_window_size() const { return get_window_size(); }
virtual void set_min_window_size(const Size2 p_size) {}
virtual void set_max_window_size(const Size2 p_size) {}
virtual void set_window_size(const Size2 p_size) {}
virtual void set_window_fullscreen(bool p_enabled) {}
virtual bool is_window_fullscreen() const { return true; }
virtual void set_window_resizable(bool p_enabled) {}
virtual bool is_window_resizable() const { return false; }
virtual void set_window_minimized(bool p_enabled) {}
virtual bool is_window_minimized() const { return false; }
virtual void set_window_maximized(bool p_enabled) {}
virtual bool is_window_maximized() const { return true; }
virtual void set_window_always_on_top(bool p_enabled) {}
virtual bool is_window_always_on_top() const { return false; }
virtual bool is_window_focused() const { return true; }
virtual void set_console_visible(bool p_enabled) {}
virtual bool is_console_visible() const { return false; }
virtual void request_attention() {}
virtual void center_window();
// Returns internal pointers and handles.
// While exposed to GDScript this is mostly to give GDNative plugins access to this information.
// Note that whether a valid handle is returned depends on whether it applies to the given
// platform and often to the chosen render driver.
// NULL will be returned if a handle is not available.
enum HandleType {
APPLICATION_HANDLE, // HINSTANCE, NSApplication*, UIApplication*, JNIEnv* ...
DISPLAY_HANDLE, // X11::Display* ...
WINDOW_HANDLE, // HWND, X11::Window*, NSWindow*, UIWindow*, Android activity ...
WINDOW_VIEW, // HDC, NSView*, UIView*, Android surface ...
OPENGL_CONTEXT, // HGLRC, X11::GLXContext, NSOpenGLContext*, EGLContext* ...
};
virtual void *get_native_handle(int p_handle_type) { return NULL; };
// Returns window area free of hardware controls and other obstacles.
// The application should use this to determine where to place UI elements.
//
// Keep in mind the area returned is in window coordinates rather than
// viewport coordinates - you should perform the conversion on your own.
//
// The maximum size of the area is Rect2(0, 0, window_size.width, window_size.height).
virtual Rect2 get_window_safe_area() const {
Size2 window_size = get_window_size();
return Rect2(0, 0, window_size.width, window_size.height);
}
virtual void set_borderless_window(bool p_borderless) {}
virtual bool get_borderless_window() { return 0; }
virtual bool get_window_per_pixel_transparency_enabled() const { return false; }
virtual void set_window_per_pixel_transparency_enabled(bool p_enabled) {}
virtual void set_ime_active(const bool p_active) {}
virtual void set_ime_position(const Point2 &p_pos) {}
virtual Point2 get_ime_selection() const { return Point2(); }
virtual String get_ime_text() const { return String(); }
virtual Error open_dynamic_library(const String p_path, void *&p_library_handle, bool p_also_set_library_path = false) { return ERR_UNAVAILABLE; }
virtual Error close_dynamic_library(void *p_library_handle) { return ERR_UNAVAILABLE; }
virtual Error get_dynamic_library_symbol_handle(void *p_library_handle, const String p_name, void *&p_symbol_handle, bool p_optional = false) { return ERR_UNAVAILABLE; }
virtual void set_keep_screen_on(bool p_enabled);
virtual bool is_keep_screen_on() const;
virtual void set_low_processor_usage_mode(bool p_enabled);
virtual bool is_in_low_processor_usage_mode() const;
virtual void set_low_processor_usage_mode_sleep_usec(int p_usec);
virtual int get_low_processor_usage_mode_sleep_usec() const;
virtual String get_executable_path() const;
virtual Error execute(const String &p_path, const List<String> &p_arguments, bool p_blocking = true, ProcessID *r_child_id = NULL, String *r_pipe = NULL, int *r_exitcode = NULL, bool read_stderr = false, Mutex *p_pipe_mutex = NULL) = 0;
virtual Error kill(const ProcessID &p_pid) = 0;
virtual int get_process_id() const;
virtual void vibrate_handheld(int p_duration_ms = 500);
virtual Error shell_open(String p_uri);
virtual Error set_cwd(const String &p_cwd);
virtual bool has_environment(const String &p_var) const = 0;
virtual String get_environment(const String &p_var) const = 0;
virtual bool set_environment(const String &p_var, const String &p_value) const = 0;
virtual String get_name() const = 0;
virtual List<String> get_cmdline_args() const { return _cmdline; }
virtual String get_model_name() const;
void ensure_user_data_dir();
virtual MainLoop *get_main_loop() const = 0;
virtual void yield();
enum Weekday {
DAY_SUNDAY,
DAY_MONDAY,
DAY_TUESDAY,
DAY_WEDNESDAY,
DAY_THURSDAY,
DAY_FRIDAY,
DAY_SATURDAY
};
enum Month {
/// Start at 1 to follow Windows SYSTEMTIME structure
/// https://msdn.microsoft.com/en-us/library/windows/desktop/ms724950(v=vs.85).aspx
MONTH_JANUARY = 1,
MONTH_FEBRUARY,
MONTH_MARCH,
MONTH_APRIL,
MONTH_MAY,
MONTH_JUNE,
MONTH_JULY,
MONTH_AUGUST,
MONTH_SEPTEMBER,
MONTH_OCTOBER,
MONTH_NOVEMBER,
MONTH_DECEMBER
};
struct Date {
int year;
Month month;
int day;
Weekday weekday;
bool dst;
};
struct Time {
int hour;
int min;
int sec;
};
struct TimeZoneInfo {
int bias;
String name;
};
virtual Date get_date(bool local = false) const = 0;
virtual Time get_time(bool local = false) const = 0;
virtual TimeZoneInfo get_time_zone_info() const = 0;
virtual String get_iso_date_time(bool local = false) const;
virtual uint64_t get_unix_time() const;
virtual uint64_t get_system_time_secs() const;
virtual uint64_t get_system_time_msecs() const;
virtual void delay_usec(uint32_t p_usec) const = 0;
virtual void add_frame_delay(bool p_can_draw);
virtual uint64_t get_ticks_usec() const = 0;
uint32_t get_ticks_msec() const;
uint64_t get_splash_tick_msec() const;
virtual bool can_draw() const = 0;
virtual bool is_userfs_persistent() const { return true; }
bool is_stdout_verbose() const;
bool is_stdout_debug_enabled() const;
virtual void disable_crash_handler() {}
virtual bool is_disable_crash_handler() const { return false; }
virtual void initialize_debugging() {}
enum CursorShape {
CURSOR_ARROW,
CURSOR_IBEAM,
CURSOR_POINTING_HAND,
CURSOR_CROSS,
CURSOR_WAIT,
CURSOR_BUSY,
CURSOR_DRAG,
CURSOR_CAN_DROP,
CURSOR_FORBIDDEN,
CURSOR_VSIZE,
CURSOR_HSIZE,
CURSOR_BDIAGSIZE,
CURSOR_FDIAGSIZE,
CURSOR_MOVE,
CURSOR_VSPLIT,
CURSOR_HSPLIT,
CURSOR_HELP,
CURSOR_MAX
};
virtual bool has_virtual_keyboard() const;
virtual void show_virtual_keyboard(const String &p_existing_text, const Rect2 &p_screen_rect = Rect2(), bool p_multiline = false, int p_max_input_length = -1, int p_cursor_start = -1, int p_cursor_end = -1);
virtual void hide_virtual_keyboard();
// returns height of the currently shown virtual keyboard (0 if keyboard is hidden)
virtual int get_virtual_keyboard_height() const;
virtual void set_cursor_shape(CursorShape p_shape);
virtual CursorShape get_cursor_shape() const;
virtual void set_custom_mouse_cursor(const RES &p_cursor, CursorShape p_shape, const Vector2 &p_hotspot);
virtual bool get_swap_ok_cancel() { return false; }
virtual void dump_memory_to_file(const char *p_file);
virtual void dump_resources_to_file(const char *p_file);
virtual void print_resources_in_use(bool p_short = false);
virtual void print_all_resources(String p_to_file = "");
virtual uint64_t get_static_memory_usage() const;
virtual uint64_t get_static_memory_peak_usage() const;
virtual uint64_t get_dynamic_memory_usage() const;
virtual uint64_t get_free_static_memory() const;
RenderThreadMode get_render_thread_mode() const { return _render_thread_mode; }
virtual String get_locale() const;
String get_safe_dir_name(const String &p_dir_name, bool p_allow_dir_separator = false) const;
virtual String get_godot_dir_name() const;
virtual String get_data_path() const;
virtual String get_config_path() const;
virtual String get_cache_path() const;
virtual String get_bundle_resource_dir() const;
virtual String get_user_data_dir() const;
virtual String get_resource_dir() const;
enum SystemDir {
SYSTEM_DIR_DESKTOP,
SYSTEM_DIR_DCIM,
SYSTEM_DIR_DOCUMENTS,
SYSTEM_DIR_DOWNLOADS,
SYSTEM_DIR_MOVIES,
SYSTEM_DIR_MUSIC,
SYSTEM_DIR_PICTURES,
SYSTEM_DIR_RINGTONES,
};
virtual String get_system_dir(SystemDir p_dir) const;
virtual Error move_to_trash(const String &p_path) { return FAILED; }
virtual void set_no_window_mode(bool p_enable);
virtual bool is_no_window_mode_enabled() const;
virtual bool has_touchscreen_ui_hint() const;
enum ScreenOrientation {
SCREEN_LANDSCAPE,
SCREEN_PORTRAIT,
SCREEN_REVERSE_LANDSCAPE,
SCREEN_REVERSE_PORTRAIT,
SCREEN_SENSOR_LANDSCAPE,
SCREEN_SENSOR_PORTRAIT,
SCREEN_SENSOR,
};
virtual void set_screen_orientation(ScreenOrientation p_orientation);
virtual ScreenOrientation get_screen_orientation() const;
virtual void enable_for_stealing_focus(ProcessID pid) {}
virtual void move_window_to_foreground() {}
virtual void debug_break();
virtual void release_rendering_thread();
virtual void make_rendering_thread();
virtual void swap_buffers();
virtual void set_native_icon(const String &p_filename);
virtual void set_icon(const Ref<Image> &p_icon);
virtual int get_exit_code() const;
virtual void set_exit_code(int p_code);
virtual int get_processor_count() const;
virtual String get_unique_id() const;
virtual Error native_video_play(String p_path, float p_volume, String p_audio_track, String p_subtitle_track);
virtual bool native_video_is_playing() const;
virtual void native_video_pause();
virtual void native_video_unpause();
virtual void native_video_stop();
virtual bool can_use_threads() const;
virtual Error dialog_show(String p_title, String p_description, Vector<String> p_buttons, Object *p_obj, String p_callback);
virtual Error dialog_input_text(String p_title, String p_description, String p_partial, Object *p_obj, String p_callback);
enum LatinKeyboardVariant {
LATIN_KEYBOARD_QWERTY,
LATIN_KEYBOARD_QWERTZ,
LATIN_KEYBOARD_AZERTY,
LATIN_KEYBOARD_QZERTY,
LATIN_KEYBOARD_DVORAK,
LATIN_KEYBOARD_NEO,
LATIN_KEYBOARD_COLEMAK,
};
virtual LatinKeyboardVariant get_latin_keyboard_variant() const;
virtual int keyboard_get_layout_count() const;
virtual int keyboard_get_current_layout() const;
virtual void keyboard_set_current_layout(int p_index);
virtual String keyboard_get_layout_language(int p_index) const;
virtual String keyboard_get_layout_name(int p_index) const;
virtual bool is_joy_known(int p_device);
virtual String get_joy_guid(int p_device) const;
enum EngineContext {
CONTEXT_EDITOR,
CONTEXT_PROJECTMAN,
CONTEXT_ENGINE,
};
virtual void set_context(int p_context);
//amazing hack because OpenGL needs this to be set on a separate thread..
//also core can't access servers, so a callback must be used
typedef void (*SwitchVSyncCallbackInThread)(bool);
static SwitchVSyncCallbackInThread switch_vsync_function;
void set_use_vsync(bool p_enable);
bool is_vsync_enabled() const;
//real, actual overridable function to switch vsync, which needs to be called from graphics thread if needed
virtual void _set_use_vsync(bool p_enable) {}
void set_vsync_via_compositor(bool p_enable);
bool is_vsync_via_compositor_enabled() const;
virtual OS::PowerState get_power_state();
virtual int get_power_seconds_left();
virtual int get_power_percent_left();
virtual void force_process_input(){};
bool has_feature(const String &p_feature);
void set_has_server_feature_callback(HasServerFeatureCallback p_callback);
bool is_layered_allowed() const { return _allow_layered; }
bool is_hidpi_allowed() const { return _allow_hidpi; }
void set_restart_on_exit(bool p_restart, const List<String> &p_restart_arguments);
bool is_restart_on_exit_set() const;
List<String> get_restart_on_exit_arguments() const;
virtual bool request_permission(const String &p_name) { return true; }
virtual bool request_permissions() { return true; }
virtual Vector<String> get_granted_permissions() const { return Vector<String>(); }
virtual void process_and_drop_events() {}
OS();
virtual ~OS();
};
VARIANT_ENUM_CAST(OS::PowerState);
#endif
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