2e07dcf1e7
This is a pretty popular approach that took a while for me to wrap my head around and which only recently got "official" support through an update (xdg_shell version 6), so I think that this is all-in-all a better option than the overkill 2000Hz ticking we have now :P Basically, we wait for a frame event and, if either too much time passes or we get the new `suspended` state, we consider the window as "hidden" and stop drawing, ticking by the low usage rate. This should work great for KDE and Mutter, which support the new state, but not yet for sway, which is still stuck at a very old xdg_shell version and thus falls back to the timeout approach. Be aware that if we rely on timing out the engine will have to stall for the whole timeout, which _could_ be problematic but doensn't seem like it. Further testing is needed. Special thanks go to the guys over at #wayland on OFTC, who very patiently explained me this approach way too many times.
145 lines
5.6 KiB
C++
145 lines
5.6 KiB
C++
/**************************************************************************/
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/* os_linuxbsd.h */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#ifndef OS_LINUXBSD_H
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#define OS_LINUXBSD_H
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#include "crash_handler_linuxbsd.h"
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#include "joypad_linux.h"
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#include "core/input/input.h"
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#include "drivers/alsa/audio_driver_alsa.h"
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#include "drivers/alsamidi/midi_driver_alsamidi.h"
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#include "drivers/pulseaudio/audio_driver_pulseaudio.h"
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#include "drivers/unix/os_unix.h"
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#include "servers/audio_server.h"
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#ifdef FONTCONFIG_ENABLED
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#ifdef SOWRAP_ENABLED
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#include "fontconfig-so_wrap.h"
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#else
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#include <fontconfig/fontconfig.h>
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#endif
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#endif
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class OS_LinuxBSD : public OS_Unix {
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virtual void delete_main_loop() override;
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#ifdef FONTCONFIG_ENABLED
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bool font_config_initialized = false;
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FcConfig *config = nullptr;
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FcObjectSet *object_set = nullptr;
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int _weight_to_fc(int p_weight) const;
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int _stretch_to_fc(int p_stretch) const;
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#endif
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#ifdef JOYDEV_ENABLED
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JoypadLinux *joypad = nullptr;
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#endif
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#ifdef ALSA_ENABLED
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AudioDriverALSA driver_alsa;
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#endif
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#ifdef ALSAMIDI_ENABLED
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MIDIDriverALSAMidi driver_alsamidi;
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#endif
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#ifdef PULSEAUDIO_ENABLED
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AudioDriverPulseAudio driver_pulseaudio;
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#endif
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CrashHandler crash_handler;
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MainLoop *main_loop = nullptr;
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String get_systemd_os_release_info_value(const String &key) const;
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Vector<String> lspci_device_filter(Vector<String> vendor_device_id_mapping, String class_suffix, String check_column, String whitelist) const;
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Vector<String> lspci_get_device_value(Vector<String> vendor_device_id_mapping, String check_column, String blacklist) const;
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String system_dir_desktop_cache;
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protected:
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virtual void initialize() override;
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virtual void finalize() override;
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virtual void initialize_joypads() override;
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virtual void set_main_loop(MainLoop *p_main_loop) override;
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public:
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virtual String get_identifier() const override;
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virtual String get_name() const override;
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virtual String get_distribution_name() const override;
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virtual String get_version() const override;
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virtual Vector<String> get_video_adapter_driver_info() const override;
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virtual MainLoop *get_main_loop() const override;
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virtual uint64_t get_embedded_pck_offset() const override;
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virtual Vector<String> get_system_fonts() const override;
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virtual String get_system_font_path(const String &p_font_name, int p_weight = 400, int p_stretch = 100, bool p_italic = false) const override;
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virtual Vector<String> get_system_font_path_for_text(const String &p_font_name, const String &p_text, const String &p_locale = String(), const String &p_script = String(), int p_weight = 400, int p_stretch = 100, bool p_italic = false) const override;
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virtual String get_config_path() const override;
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virtual String get_data_path() const override;
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virtual String get_cache_path() const override;
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virtual String get_system_dir(SystemDir p_dir, bool p_shared_storage = true) const override;
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virtual Error shell_open(const String &p_uri) override;
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virtual String get_unique_id() const override;
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virtual String get_processor_name() const override;
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virtual bool is_sandboxed() const override;
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virtual void alert(const String &p_alert, const String &p_title = "ALERT!") override;
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virtual bool _check_internal_feature_support(const String &p_feature) override;
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void run();
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virtual void disable_crash_handler() override;
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virtual bool is_disable_crash_handler() const override;
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virtual Error move_to_trash(const String &p_path) override;
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virtual String get_system_ca_certificates() override;
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OS_LinuxBSD();
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~OS_LinuxBSD();
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};
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#endif // OS_LINUXBSD_H
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