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godot/platform/linuxbsd/os_linuxbsd.cpp
Wilson E. Alvarez a3cb1b096f
Add const references detected by clang-tidy
2023-12-16 13:36:44 -05:00

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/**************************************************************************/
/* os_linuxbsd.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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. */
/**************************************************************************/
#include "os_linuxbsd.h"
#include "core/io/certs_compressed.gen.h"
#include "core/io/dir_access.h"
#include "main/main.h"
#include "servers/display_server.h"
#ifdef X11_ENABLED
#include "x11/display_server_x11.h"
#endif
#include "modules/modules_enabled.gen.h" // For regex.
#ifdef MODULE_REGEX_ENABLED
#include "modules/regex/regex.h"
#endif
#include <dlfcn.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/utsname.h>
#include <unistd.h>
#ifdef HAVE_MNTENT
#include <mntent.h>
#endif
void OS_LinuxBSD::alert(const String &p_alert, const String &p_title) {
const char *message_programs[] = { "zenity", "kdialog", "Xdialog", "xmessage" };
String path = get_environment("PATH");
Vector<String> path_elems = path.split(":", false);
String program;
for (int i = 0; i < path_elems.size(); i++) {
for (uint64_t k = 0; k < sizeof(message_programs) / sizeof(char *); k++) {
String tested_path = path_elems[i].path_join(message_programs[k]);
if (FileAccess::exists(tested_path)) {
program = tested_path;
break;
}
}
if (program.length()) {
break;
}
}
List<String> args;
if (program.ends_with("zenity")) {
args.push_back("--warning");
args.push_back("--width");
args.push_back("500");
args.push_back("--title");
args.push_back(p_title);
args.push_back("--text");
args.push_back(p_alert);
}
if (program.ends_with("kdialog")) {
// `--sorry` uses the same icon as `--warning` in Zenity.
// As of KDialog 22.12.1, its `--warning` options are only available for yes/no questions.
args.push_back("--sorry");
args.push_back(p_alert);
args.push_back("--title");
args.push_back(p_title);
}
if (program.ends_with("Xdialog")) {
args.push_back("--title");
args.push_back(p_title);
args.push_back("--msgbox");
args.push_back(p_alert);
args.push_back("0");
args.push_back("0");
}
if (program.ends_with("xmessage")) {
args.push_back("-center");
args.push_back("-title");
args.push_back(p_title);
args.push_back(p_alert);
}
if (program.length()) {
execute(program, args);
} else {
print_line(p_alert);
}
}
void OS_LinuxBSD::initialize() {
crash_handler.initialize();
OS_Unix::initialize_core();
system_dir_desktop_cache = get_system_dir(SYSTEM_DIR_DESKTOP);
}
void OS_LinuxBSD::initialize_joypads() {
#ifdef JOYDEV_ENABLED
joypad = memnew(JoypadLinux(Input::get_singleton()));
#endif
}
String OS_LinuxBSD::get_unique_id() const {
static String machine_id;
if (machine_id.is_empty()) {
Ref<FileAccess> f = FileAccess::open("/etc/machine-id", FileAccess::READ);
if (f.is_valid()) {
while (machine_id.is_empty() && !f->eof_reached()) {
machine_id = f->get_line().strip_edges();
}
}
}
return machine_id;
}
String OS_LinuxBSD::get_processor_name() const {
Ref<FileAccess> f = FileAccess::open("/proc/cpuinfo", FileAccess::READ);
ERR_FAIL_COND_V_MSG(f.is_null(), "", String("Couldn't open `/proc/cpuinfo` to get the CPU model name. Returning an empty string."));
while (!f->eof_reached()) {
const String line = f->get_line();
if (line.find("model name") != -1) {
return line.split(":")[1].strip_edges();
}
}
ERR_FAIL_V_MSG("", String("Couldn't get the CPU model name from `/proc/cpuinfo`. Returning an empty string."));
}
bool OS_LinuxBSD::is_sandboxed() const {
// This function is derived from SDL:
// https://github.com/libsdl-org/SDL/blob/main/src/core/linux/SDL_sandbox.c#L28-L45
if (access("/.flatpak-info", F_OK) == 0) {
return true;
}
// For Snap, we check multiple variables because they might be set for
// unrelated reasons. This is the same thing WebKitGTK does.
if (has_environment("SNAP") && has_environment("SNAP_NAME") && has_environment("SNAP_REVISION")) {
return true;
}
if (access("/run/host/container-manager", F_OK) == 0) {
return true;
}
return false;
}
void OS_LinuxBSD::finalize() {
if (main_loop) {
memdelete(main_loop);
}
main_loop = nullptr;
#ifdef ALSAMIDI_ENABLED
driver_alsamidi.close();
#endif
#ifdef JOYDEV_ENABLED
if (joypad) {
memdelete(joypad);
}
#endif
}
MainLoop *OS_LinuxBSD::get_main_loop() const {
return main_loop;
}
void OS_LinuxBSD::delete_main_loop() {
if (main_loop) {
memdelete(main_loop);
}
main_loop = nullptr;
}
void OS_LinuxBSD::set_main_loop(MainLoop *p_main_loop) {
main_loop = p_main_loop;
}
String OS_LinuxBSD::get_identifier() const {
return "linuxbsd";
}
String OS_LinuxBSD::get_name() const {
#ifdef __linux__
return "Linux";
#elif defined(__FreeBSD__)
return "FreeBSD";
#elif defined(__NetBSD__)
return "NetBSD";
#elif defined(__OpenBSD__)
return "OpenBSD";
#else
return "BSD";
#endif
}
String OS_LinuxBSD::get_systemd_os_release_info_value(const String &key) const {
Ref<FileAccess> f = FileAccess::open("/etc/os-release", FileAccess::READ);
if (f.is_valid()) {
while (!f->eof_reached()) {
const String line = f->get_line();
if (line.find(key) != -1) {
String value = line.split("=")[1].strip_edges();
value = value.trim_prefix("\"");
return value.trim_suffix("\"");
}
}
}
return "";
}
String OS_LinuxBSD::get_distribution_name() const {
static String distribution_name = get_systemd_os_release_info_value("NAME"); // returns a value for systemd users, otherwise an empty string.
if (!distribution_name.is_empty()) {
return distribution_name;
}
struct utsname uts; // returns a decent value for BSD family.
uname(&uts);
distribution_name = uts.sysname;
return distribution_name;
}
String OS_LinuxBSD::get_version() const {
static String release_version = get_systemd_os_release_info_value("VERSION"); // returns a value for systemd users, otherwise an empty string.
if (!release_version.is_empty()) {
return release_version;
}
struct utsname uts; // returns a decent value for BSD family.
uname(&uts);
release_version = uts.version;
return release_version;
}
Vector<String> OS_LinuxBSD::get_video_adapter_driver_info() const {
if (RenderingServer::get_singleton() == nullptr) {
return Vector<String>();
}
static Vector<String> info;
if (!info.is_empty()) {
return info;
}
const String rendering_device_name = RenderingServer::get_singleton()->get_video_adapter_name(); // e.g. `NVIDIA GeForce GTX 970`
const String rendering_device_vendor = RenderingServer::get_singleton()->get_video_adapter_vendor(); // e.g. `NVIDIA`
const String card_name = rendering_device_name.trim_prefix(rendering_device_vendor).strip_edges(); // -> `GeForce GTX 970`
String vendor_device_id_mappings;
List<String> lspci_args;
lspci_args.push_back("-n");
Error err = const_cast<OS_LinuxBSD *>(this)->execute("lspci", lspci_args, &vendor_device_id_mappings);
if (err != OK || vendor_device_id_mappings.is_empty()) {
return Vector<String>();
}
// Usually found under "VGA", but for example NVIDIA mobile/laptop adapters are often listed under "3D" and some AMD adapters are under "Display".
const String dc_vga = "0300"; // VGA compatible controller
const String dc_display = "0302"; // Display controller
const String dc_3d = "0380"; // 3D controller
// splitting results by device class allows prioritizing, if multiple devices are found.
Vector<String> class_vga_device_candidates;
Vector<String> class_display_device_candidates;
Vector<String> class_3d_device_candidates;
#ifdef MODULE_REGEX_ENABLED
RegEx regex_id_format = RegEx();
regex_id_format.compile("^[a-f0-9]{4}:[a-f0-9]{4}$"); // e.g. `10de:13c2`; IDs are always in hexadecimal
#endif
Vector<String> value_lines = vendor_device_id_mappings.split("\n", false); // example: `02:00.0 0300: 10de:13c2 (rev a1)`
for (const String &line : value_lines) {
Vector<String> columns = line.split(" ", false);
if (columns.size() < 3) {
continue;
}
String device_class = columns[1].trim_suffix(":");
const String &vendor_device_id_mapping = columns[2];
#ifdef MODULE_REGEX_ENABLED
if (regex_id_format.search(vendor_device_id_mapping).is_null()) {
continue;
}
#endif
if (device_class == dc_vga) {
class_vga_device_candidates.push_back(vendor_device_id_mapping);
} else if (device_class == dc_display) {
class_display_device_candidates.push_back(vendor_device_id_mapping);
} else if (device_class == dc_3d) {
class_3d_device_candidates.push_back(vendor_device_id_mapping);
}
}
// Check results against currently used device (`card_name`), in case the user has multiple graphics cards.
const String device_lit = "Device"; // line of interest
class_vga_device_candidates = OS_LinuxBSD::lspci_device_filter(class_vga_device_candidates, dc_vga, device_lit, card_name);
class_display_device_candidates = OS_LinuxBSD::lspci_device_filter(class_display_device_candidates, dc_display, device_lit, card_name);
class_3d_device_candidates = OS_LinuxBSD::lspci_device_filter(class_3d_device_candidates, dc_3d, device_lit, card_name);
// Get driver names and filter out invalid ones, because some adapters are dummys used only for passthrough.
// And they have no indicator besides certain driver names.
const String kernel_lit = "Kernel driver in use"; // line of interest
const String dummys = "vfio"; // for e.g. pci passthrough dummy kernel driver `vfio-pci`
Vector<String> class_vga_device_drivers = OS_LinuxBSD::lspci_get_device_value(class_vga_device_candidates, kernel_lit, dummys);
Vector<String> class_display_device_drivers = OS_LinuxBSD::lspci_get_device_value(class_display_device_candidates, kernel_lit, dummys);
Vector<String> class_3d_device_drivers = OS_LinuxBSD::lspci_get_device_value(class_3d_device_candidates, kernel_lit, dummys);
String driver_name;
String driver_version;
// Use first valid value:
for (const String &driver : class_3d_device_drivers) {
driver_name = driver;
break;
}
if (driver_name.is_empty()) {
for (const String &driver : class_display_device_drivers) {
driver_name = driver;
break;
}
}
if (driver_name.is_empty()) {
for (const String &driver : class_vga_device_drivers) {
driver_name = driver;
break;
}
}
info.push_back(driver_name);
String modinfo;
List<String> modinfo_args;
modinfo_args.push_back(driver_name);
err = const_cast<OS_LinuxBSD *>(this)->execute("modinfo", modinfo_args, &modinfo);
if (err != OK || modinfo.is_empty()) {
info.push_back(""); // So that this method always either returns an empty array, or an array of length 2.
return info;
}
Vector<String> lines = modinfo.split("\n", false);
for (const String &line : lines) {
Vector<String> columns = line.split(":", false, 1);
if (columns.size() < 2) {
continue;
}
if (columns[0].strip_edges() == "version") {
driver_version = columns[1].strip_edges(); // example value: `510.85.02` on Linux/BSD
break;
}
}
info.push_back(driver_version);
return info;
}
Vector<String> OS_LinuxBSD::lspci_device_filter(Vector<String> vendor_device_id_mapping, String class_suffix, String check_column, String whitelist) const {
// NOTE: whitelist can be changed to `Vector<String>`, if the need arises.
const String sep = ":";
Vector<String> devices;
for (const String &mapping : vendor_device_id_mapping) {
String device;
List<String> d_args;
d_args.push_back("-d");
d_args.push_back(mapping + sep + class_suffix);
d_args.push_back("-vmm");
Error err = const_cast<OS_LinuxBSD *>(this)->execute("lspci", d_args, &device); // e.g. `lspci -d 10de:13c2:0300 -vmm`
if (err != OK) {
return Vector<String>();
} else if (device.is_empty()) {
continue;
}
Vector<String> device_lines = device.split("\n", false);
for (const String &line : device_lines) {
Vector<String> columns = line.split(":", false, 1);
if (columns.size() < 2) {
continue;
}
if (columns[0].strip_edges() == check_column) {
// for `column[0] == "Device"` this may contain `GM204 [GeForce GTX 970]`
bool is_valid = true;
if (!whitelist.is_empty()) {
is_valid = columns[1].strip_edges().contains(whitelist);
}
if (is_valid) {
devices.push_back(mapping);
}
break;
}
}
}
return devices;
}
Vector<String> OS_LinuxBSD::lspci_get_device_value(Vector<String> vendor_device_id_mapping, String check_column, String blacklist) const {
// NOTE: blacklist can be changed to `Vector<String>`, if the need arises.
const String sep = ":";
Vector<String> values;
for (const String &mapping : vendor_device_id_mapping) {
String device;
List<String> d_args;
d_args.push_back("-d");
d_args.push_back(mapping);
d_args.push_back("-k");
Error err = const_cast<OS_LinuxBSD *>(this)->execute("lspci", d_args, &device); // e.g. `lspci -d 10de:13c2 -k`
if (err != OK) {
return Vector<String>();
} else if (device.is_empty()) {
continue;
}
Vector<String> device_lines = device.split("\n", false);
for (const String &line : device_lines) {
Vector<String> columns = line.split(":", false, 1);
if (columns.size() < 2) {
continue;
}
if (columns[0].strip_edges() == check_column) {
// for `column[0] == "Kernel driver in use"` this may contain `nvidia`
bool is_valid = true;
const String value = columns[1].strip_edges();
if (!blacklist.is_empty()) {
is_valid = !value.contains(blacklist);
}
if (is_valid) {
values.push_back(value);
}
break;
}
}
}
return values;
}
Error OS_LinuxBSD::shell_open(String p_uri) {
Error ok;
int err_code;
List<String> args;
args.push_back(p_uri);
// Agnostic
ok = execute("xdg-open", args, nullptr, &err_code);
if (ok == OK && !err_code) {
return OK;
} else if (err_code == 2) {
return ERR_FILE_NOT_FOUND;
}
// GNOME
args.push_front("open"); // The command is `gio open`, so we need to add it to args
ok = execute("gio", args, nullptr, &err_code);
if (ok == OK && !err_code) {
return OK;
} else if (err_code == 2) {
return ERR_FILE_NOT_FOUND;
}
args.pop_front();
ok = execute("gvfs-open", args, nullptr, &err_code);
if (ok == OK && !err_code) {
return OK;
} else if (err_code == 2) {
return ERR_FILE_NOT_FOUND;
}
// KDE
ok = execute("kde-open5", args, nullptr, &err_code);
if (ok == OK && !err_code) {
return OK;
}
ok = execute("kde-open", args, nullptr, &err_code);
return !err_code ? ok : FAILED;
}
bool OS_LinuxBSD::_check_internal_feature_support(const String &p_feature) {
#ifdef FONTCONFIG_ENABLED
if (p_feature == "system_fonts") {
return font_config_initialized;
}
#endif
#ifndef __linux__
// `bsd` includes **all** BSD, not only "other BSD" (see `get_name()`).
if (p_feature == "bsd") {
return true;
}
#endif
if (p_feature == "pc") {
return true;
}
// Match against the specific OS (`linux`, `freebsd`, `netbsd`, `openbsd`).
if (p_feature == get_name().to_lower()) {
return true;
}
return false;
}
uint64_t OS_LinuxBSD::get_embedded_pck_offset() const {
Ref<FileAccess> f = FileAccess::open(get_executable_path(), FileAccess::READ);
if (f.is_null()) {
return 0;
}
// Read and check ELF magic number.
{
uint32_t magic = f->get_32();
if (magic != 0x464c457f) { // 0x7F + "ELF"
return 0;
}
}
// Read program architecture bits from class field.
int bits = f->get_8() * 32;
// Get info about the section header table.
int64_t section_table_pos;
int64_t section_header_size;
if (bits == 32) {
section_header_size = 40;
f->seek(0x20);
section_table_pos = f->get_32();
f->seek(0x30);
} else { // 64
section_header_size = 64;
f->seek(0x28);
section_table_pos = f->get_64();
f->seek(0x3c);
}
int num_sections = f->get_16();
int string_section_idx = f->get_16();
// Load the strings table.
uint8_t *strings;
{
// Jump to the strings section header.
f->seek(section_table_pos + string_section_idx * section_header_size);
// Read strings data size and offset.
int64_t string_data_pos;
int64_t string_data_size;
if (bits == 32) {
f->seek(f->get_position() + 0x10);
string_data_pos = f->get_32();
string_data_size = f->get_32();
} else { // 64
f->seek(f->get_position() + 0x18);
string_data_pos = f->get_64();
string_data_size = f->get_64();
}
// Read strings data.
f->seek(string_data_pos);
strings = (uint8_t *)memalloc(string_data_size);
if (!strings) {
return 0;
}
f->get_buffer(strings, string_data_size);
}
// Search for the "pck" section.
int64_t off = 0;
for (int i = 0; i < num_sections; ++i) {
int64_t section_header_pos = section_table_pos + i * section_header_size;
f->seek(section_header_pos);
uint32_t name_offset = f->get_32();
if (strcmp((char *)strings + name_offset, "pck") == 0) {
if (bits == 32) {
f->seek(section_header_pos + 0x10);
off = f->get_32();
} else { // 64
f->seek(section_header_pos + 0x18);
off = f->get_64();
}
break;
}
}
memfree(strings);
return off;
}
Vector<String> OS_LinuxBSD::get_system_fonts() const {
#ifdef FONTCONFIG_ENABLED
if (!font_config_initialized) {
ERR_FAIL_V_MSG(Vector<String>(), "Unable to load fontconfig, system font support is disabled.");
}
HashSet<String> font_names;
Vector<String> ret;
static const char *allowed_formats[] = { "TrueType", "CFF" };
for (size_t i = 0; i < sizeof(allowed_formats) / sizeof(const char *); i++) {
FcPattern *pattern = FcPatternCreate();
ERR_CONTINUE(!pattern);
FcPatternAddBool(pattern, FC_SCALABLE, FcTrue);
FcPatternAddString(pattern, FC_FONTFORMAT, reinterpret_cast<const FcChar8 *>(allowed_formats[i]));
FcFontSet *font_set = FcFontList(config, pattern, object_set);
if (font_set) {
for (int j = 0; j < font_set->nfont; j++) {
char *family_name = nullptr;
if (FcPatternGetString(font_set->fonts[j], FC_FAMILY, 0, reinterpret_cast<FcChar8 **>(&family_name)) == FcResultMatch) {
if (family_name) {
font_names.insert(String::utf8(family_name));
}
}
}
FcFontSetDestroy(font_set);
}
FcPatternDestroy(pattern);
}
for (const String &E : font_names) {
ret.push_back(E);
}
return ret;
#else
ERR_FAIL_V_MSG(Vector<String>(), "Godot was compiled without fontconfig, system font support is disabled.");
#endif
}
#ifdef FONTCONFIG_ENABLED
int OS_LinuxBSD::_weight_to_fc(int p_weight) const {
if (p_weight < 150) {
return FC_WEIGHT_THIN;
} else if (p_weight < 250) {
return FC_WEIGHT_EXTRALIGHT;
} else if (p_weight < 325) {
return FC_WEIGHT_LIGHT;
} else if (p_weight < 375) {
return FC_WEIGHT_DEMILIGHT;
} else if (p_weight < 390) {
return FC_WEIGHT_BOOK;
} else if (p_weight < 450) {
return FC_WEIGHT_REGULAR;
} else if (p_weight < 550) {
return FC_WEIGHT_MEDIUM;
} else if (p_weight < 650) {
return FC_WEIGHT_DEMIBOLD;
} else if (p_weight < 750) {
return FC_WEIGHT_BOLD;
} else if (p_weight < 850) {
return FC_WEIGHT_EXTRABOLD;
} else if (p_weight < 925) {
return FC_WEIGHT_BLACK;
} else {
return FC_WEIGHT_EXTRABLACK;
}
}
int OS_LinuxBSD::_stretch_to_fc(int p_stretch) const {
if (p_stretch < 56) {
return FC_WIDTH_ULTRACONDENSED;
} else if (p_stretch < 69) {
return FC_WIDTH_EXTRACONDENSED;
} else if (p_stretch < 81) {
return FC_WIDTH_CONDENSED;
} else if (p_stretch < 93) {
return FC_WIDTH_SEMICONDENSED;
} else if (p_stretch < 106) {
return FC_WIDTH_NORMAL;
} else if (p_stretch < 137) {
return FC_WIDTH_SEMIEXPANDED;
} else if (p_stretch < 144) {
return FC_WIDTH_EXPANDED;
} else if (p_stretch < 162) {
return FC_WIDTH_EXTRAEXPANDED;
} else {
return FC_WIDTH_ULTRAEXPANDED;
}
}
#endif // FONTCONFIG_ENABLED
Vector<String> OS_LinuxBSD::get_system_font_path_for_text(const String &p_font_name, const String &p_text, const String &p_locale, const String &p_script, int p_weight, int p_stretch, bool p_italic) const {
#ifdef FONTCONFIG_ENABLED
if (!font_config_initialized) {
ERR_FAIL_V_MSG(Vector<String>(), "Unable to load fontconfig, system font support is disabled.");
}
Vector<String> ret;
static const char *allowed_formats[] = { "TrueType", "CFF" };
for (size_t i = 0; i < sizeof(allowed_formats) / sizeof(const char *); i++) {
FcPattern *pattern = FcPatternCreate();
if (pattern) {
FcPatternAddBool(pattern, FC_SCALABLE, FcTrue);
FcPatternAddString(pattern, FC_FONTFORMAT, reinterpret_cast<const FcChar8 *>(allowed_formats[i]));
FcPatternAddString(pattern, FC_FAMILY, reinterpret_cast<const FcChar8 *>(p_font_name.utf8().get_data()));
FcPatternAddInteger(pattern, FC_WEIGHT, _weight_to_fc(p_weight));
FcPatternAddInteger(pattern, FC_WIDTH, _stretch_to_fc(p_stretch));
FcPatternAddInteger(pattern, FC_SLANT, p_italic ? FC_SLANT_ITALIC : FC_SLANT_ROMAN);
FcCharSet *char_set = FcCharSetCreate();
for (int j = 0; j < p_text.size(); j++) {
FcCharSetAddChar(char_set, p_text[j]);
}
FcPatternAddCharSet(pattern, FC_CHARSET, char_set);
FcLangSet *lang_set = FcLangSetCreate();
FcLangSetAdd(lang_set, reinterpret_cast<const FcChar8 *>(p_locale.utf8().get_data()));
FcPatternAddLangSet(pattern, FC_LANG, lang_set);
FcConfigSubstitute(0, pattern, FcMatchPattern);
FcDefaultSubstitute(pattern);
FcResult result;
FcPattern *match = FcFontMatch(0, pattern, &result);
if (match) {
char *file_name = nullptr;
if (FcPatternGetString(match, FC_FILE, 0, reinterpret_cast<FcChar8 **>(&file_name)) == FcResultMatch) {
if (file_name) {
ret.push_back(String::utf8(file_name));
}
}
FcPatternDestroy(match);
}
FcPatternDestroy(pattern);
FcCharSetDestroy(char_set);
FcLangSetDestroy(lang_set);
}
}
return ret;
#else
ERR_FAIL_V_MSG(Vector<String>(), "Godot was compiled without fontconfig, system font support is disabled.");
#endif
}
String OS_LinuxBSD::get_system_font_path(const String &p_font_name, int p_weight, int p_stretch, bool p_italic) const {
#ifdef FONTCONFIG_ENABLED
if (!font_config_initialized) {
ERR_FAIL_V_MSG(String(), "Unable to load fontconfig, system font support is disabled.");
}
static const char *allowed_formats[] = { "TrueType", "CFF" };
for (size_t i = 0; i < sizeof(allowed_formats) / sizeof(const char *); i++) {
FcPattern *pattern = FcPatternCreate();
if (pattern) {
bool allow_substitutes = (p_font_name.to_lower() == "sans-serif") || (p_font_name.to_lower() == "serif") || (p_font_name.to_lower() == "monospace") || (p_font_name.to_lower() == "cursive") || (p_font_name.to_lower() == "fantasy");
FcPatternAddBool(pattern, FC_SCALABLE, FcTrue);
FcPatternAddString(pattern, FC_FONTFORMAT, reinterpret_cast<const FcChar8 *>(allowed_formats[i]));
FcPatternAddString(pattern, FC_FAMILY, reinterpret_cast<const FcChar8 *>(p_font_name.utf8().get_data()));
FcPatternAddInteger(pattern, FC_WEIGHT, _weight_to_fc(p_weight));
FcPatternAddInteger(pattern, FC_WIDTH, _stretch_to_fc(p_stretch));
FcPatternAddInteger(pattern, FC_SLANT, p_italic ? FC_SLANT_ITALIC : FC_SLANT_ROMAN);
FcConfigSubstitute(0, pattern, FcMatchPattern);
FcDefaultSubstitute(pattern);
FcResult result;
FcPattern *match = FcFontMatch(0, pattern, &result);
if (match) {
if (!allow_substitutes) {
char *family_name = nullptr;
if (FcPatternGetString(match, FC_FAMILY, 0, reinterpret_cast<FcChar8 **>(&family_name)) == FcResultMatch) {
if (family_name && String::utf8(family_name).to_lower() != p_font_name.to_lower()) {
FcPatternDestroy(match);
FcPatternDestroy(pattern);
continue;
}
}
}
char *file_name = nullptr;
if (FcPatternGetString(match, FC_FILE, 0, reinterpret_cast<FcChar8 **>(&file_name)) == FcResultMatch) {
if (file_name) {
String ret = String::utf8(file_name);
FcPatternDestroy(match);
FcPatternDestroy(pattern);
return ret;
}
}
FcPatternDestroy(match);
}
FcPatternDestroy(pattern);
}
}
return String();
#else
ERR_FAIL_V_MSG(String(), "Godot was compiled without fontconfig, system font support is disabled.");
#endif
}
String OS_LinuxBSD::get_config_path() const {
if (has_environment("XDG_CONFIG_HOME")) {
if (get_environment("XDG_CONFIG_HOME").is_absolute_path()) {
return get_environment("XDG_CONFIG_HOME");
} else {
WARN_PRINT_ONCE("`XDG_CONFIG_HOME` is a relative path. Ignoring its value and falling back to `$HOME/.config` or `.` per the XDG Base Directory specification.");
return has_environment("HOME") ? get_environment("HOME").path_join(".config") : ".";
}
} else if (has_environment("HOME")) {
return get_environment("HOME").path_join(".config");
} else {
return ".";
}
}
String OS_LinuxBSD::get_data_path() const {
if (has_environment("XDG_DATA_HOME")) {
if (get_environment("XDG_DATA_HOME").is_absolute_path()) {
return get_environment("XDG_DATA_HOME");
} else {
WARN_PRINT_ONCE("`XDG_DATA_HOME` is a relative path. Ignoring its value and falling back to `$HOME/.local/share` or `get_config_path()` per the XDG Base Directory specification.");
return has_environment("HOME") ? get_environment("HOME").path_join(".local/share") : get_config_path();
}
} else if (has_environment("HOME")) {
return get_environment("HOME").path_join(".local/share");
} else {
return get_config_path();
}
}
String OS_LinuxBSD::get_cache_path() const {
if (has_environment("XDG_CACHE_HOME")) {
if (get_environment("XDG_CACHE_HOME").is_absolute_path()) {
return get_environment("XDG_CACHE_HOME");
} else {
WARN_PRINT_ONCE("`XDG_CACHE_HOME` is a relative path. Ignoring its value and falling back to `$HOME/.cache` or `get_config_path()` per the XDG Base Directory specification.");
return has_environment("HOME") ? get_environment("HOME").path_join(".cache") : get_config_path();
}
} else if (has_environment("HOME")) {
return get_environment("HOME").path_join(".cache");
} else {
return get_config_path();
}
}
String OS_LinuxBSD::get_system_dir(SystemDir p_dir, bool p_shared_storage) const {
if (p_dir == SYSTEM_DIR_DESKTOP && !system_dir_desktop_cache.is_empty()) {
return system_dir_desktop_cache;
}
String xdgparam;
switch (p_dir) {
case SYSTEM_DIR_DESKTOP: {
xdgparam = "DESKTOP";
} break;
case SYSTEM_DIR_DCIM: {
xdgparam = "PICTURES";
} break;
case SYSTEM_DIR_DOCUMENTS: {
xdgparam = "DOCUMENTS";
} break;
case SYSTEM_DIR_DOWNLOADS: {
xdgparam = "DOWNLOAD";
} break;
case SYSTEM_DIR_MOVIES: {
xdgparam = "VIDEOS";
} break;
case SYSTEM_DIR_MUSIC: {
xdgparam = "MUSIC";
} break;
case SYSTEM_DIR_PICTURES: {
xdgparam = "PICTURES";
} break;
case SYSTEM_DIR_RINGTONES: {
xdgparam = "MUSIC";
} break;
}
String pipe;
List<String> arg;
arg.push_back(xdgparam);
Error err = const_cast<OS_LinuxBSD *>(this)->execute("xdg-user-dir", arg, &pipe);
if (err != OK) {
return ".";
}
return pipe.strip_edges();
}
void OS_LinuxBSD::run() {
if (!main_loop) {
return;
}
main_loop->initialize();
//uint64_t last_ticks=get_ticks_usec();
//int frames=0;
//uint64_t frame=0;
while (true) {
DisplayServer::get_singleton()->process_events(); // get rid of pending events
#ifdef JOYDEV_ENABLED
joypad->process_joypads();
#endif
if (Main::iteration()) {
break;
}
}
main_loop->finalize();
}
void OS_LinuxBSD::disable_crash_handler() {
crash_handler.disable();
}
bool OS_LinuxBSD::is_disable_crash_handler() const {
return crash_handler.is_disabled();
}
static String get_mountpoint(const String &p_path) {
struct stat s;
if (stat(p_path.utf8().get_data(), &s)) {
return "";
}
#ifdef HAVE_MNTENT
dev_t dev = s.st_dev;
FILE *fd = setmntent("/proc/mounts", "r");
if (!fd) {
return "";
}
struct mntent mnt;
char buf[1024];
size_t buflen = 1024;
while (getmntent_r(fd, &mnt, buf, buflen)) {
if (!stat(mnt.mnt_dir, &s) && s.st_dev == dev) {
endmntent(fd);
return String(mnt.mnt_dir);
}
}
endmntent(fd);
#endif
return "";
}
Error OS_LinuxBSD::move_to_trash(const String &p_path) {
// We try multiple methods, until we find one that works.
// So we only return on success until we exhausted possibilities.
String path = p_path.rstrip("/"); // Strip trailing slash when path points to a directory.
int err_code;
List<String> args;
args.push_back(path);
args.push_front("trash"); // The command is `gio trash <file_name>` so we add it before the path.
Error result = execute("gio", args, nullptr, &err_code); // For GNOME based machines.
if (result == OK && err_code == 0) { // Success.
return OK;
}
args.pop_front();
args.push_front("move");
args.push_back("trash:/"); // The command is `kioclient5 move <file_name> trash:/`.
result = execute("kioclient5", args, nullptr, &err_code); // For KDE based machines.
if (result == OK && err_code == 0) {
return OK;
}
args.pop_front();
args.pop_back();
result = execute("gvfs-trash", args, nullptr, &err_code); // For older Linux machines.
if (result == OK && err_code == 0) {
return OK;
}
// If the commands `kioclient5`, `gio` or `gvfs-trash` don't work on the system we do it manually.
String trash_path = "";
String mnt = get_mountpoint(path);
// If there is a directory "[Mountpoint]/.Trash-[UID], use it as the trash can.
if (!mnt.is_empty()) {
String mountpoint_trash_path(mnt + "/.Trash-" + itos(getuid()));
struct stat s;
if (!stat(mountpoint_trash_path.utf8().get_data(), &s)) {
trash_path = mountpoint_trash_path;
}
}
// Otherwise, if ${XDG_DATA_HOME} is defined, use "${XDG_DATA_HOME}/Trash" as the trash can.
if (trash_path.is_empty()) {
char *dhome = getenv("XDG_DATA_HOME");
if (dhome) {
trash_path = String::utf8(dhome) + "/Trash";
}
}
// Otherwise, if ${HOME} is defined, use "${HOME}/.local/share/Trash" as the trash can.
if (trash_path.is_empty()) {
char *home = getenv("HOME");
if (home) {
trash_path = String::utf8(home) + "/.local/share/Trash";
}
}
// Issue an error if none of the previous locations is appropriate for the trash can.
ERR_FAIL_COND_V_MSG(trash_path.is_empty(), FAILED, "Could not determine the trash can location");
// Create needed directories for decided trash can location.
{
Ref<DirAccess> dir_access = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
Error err = dir_access->make_dir_recursive(trash_path);
// Issue an error if trash can is not created properly.
ERR_FAIL_COND_V_MSG(err != OK, err, "Could not create the trash path \"" + trash_path + "\"");
err = dir_access->make_dir_recursive(trash_path + "/files");
ERR_FAIL_COND_V_MSG(err != OK, err, "Could not create the trash path \"" + trash_path + "/files\"");
err = dir_access->make_dir_recursive(trash_path + "/info");
ERR_FAIL_COND_V_MSG(err != OK, err, "Could not create the trash path \"" + trash_path + "/info\"");
}
// The trash can is successfully created, now we check that we don't exceed our file name length limit.
// If the file name is too long trim it so we can add the identifying number and ".trashinfo".
// Assumes that the file name length limit is 255 characters.
String file_name = path.get_file();
if (file_name.length() > 240) {
file_name = file_name.substr(0, file_name.length() - 15);
}
String dest_path = trash_path + "/files/" + file_name;
struct stat buff;
int id_number = 0;
String fn = file_name;
// Checks if a resource with the same name already exist in the trash can,
// if there is, add an identifying number to our resource's name.
while (stat(dest_path.utf8().get_data(), &buff) == 0) {
id_number++;
// Added a limit to check for identically named files already on the trash can
// if there are too many it could make the editor unresponsive.
ERR_FAIL_COND_V_MSG(id_number > 99, FAILED, "Too many identically named resources already in the trash can.");
fn = file_name + "." + itos(id_number);
dest_path = trash_path + "/files/" + fn;
}
file_name = fn;
String renamed_path = path.get_base_dir() + "/" + file_name;
// Generates the .trashinfo file
OS::DateTime dt = OS::get_singleton()->get_datetime(false);
String timestamp = vformat("%04d-%02d-%02dT%02d:%02d:", dt.year, (int)dt.month, dt.day, dt.hour, dt.minute);
timestamp = vformat("%s%02d", timestamp, dt.second); // vformat only supports up to 6 arguments.
String trash_info = "[Trash Info]\nPath=" + path.uri_encode() + "\nDeletionDate=" + timestamp + "\n";
{
Error err;
{
Ref<FileAccess> file = FileAccess::open(trash_path + "/info/" + file_name + ".trashinfo", FileAccess::WRITE, &err);
ERR_FAIL_COND_V_MSG(err != OK, err, "Can't create trashinfo file: \"" + trash_path + "/info/" + file_name + ".trashinfo\"");
file->store_string(trash_info);
}
// Rename our resource before moving it to the trash can.
Ref<DirAccess> dir_access = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
err = dir_access->rename(path, renamed_path);
ERR_FAIL_COND_V_MSG(err != OK, err, "Can't rename file \"" + path + "\" to \"" + renamed_path + "\"");
}
// Move the given resource to the trash can.
// Do not use DirAccess:rename() because it can't move files across multiple mountpoints.
List<String> mv_args;
mv_args.push_back(renamed_path);
mv_args.push_back(trash_path + "/files");
{
int retval;
Error err = execute("mv", mv_args, nullptr, &retval);
// Issue an error if "mv" failed to move the given resource to the trash can.
if (err != OK || retval != 0) {
ERR_PRINT("move_to_trash: Could not move the resource \"" + path + "\" to the trash can \"" + trash_path + "/files\"");
Ref<DirAccess> dir_access = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
err = dir_access->rename(renamed_path, path);
ERR_FAIL_COND_V_MSG(err != OK, err, "Could not rename \"" + renamed_path + "\" back to its original name: \"" + path + "\"");
return FAILED;
}
}
return OK;
}
String OS_LinuxBSD::get_system_ca_certificates() {
String certfile;
Ref<DirAccess> da = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
// Compile time preferred certificates path.
if (!String(_SYSTEM_CERTS_PATH).is_empty() && da->file_exists(_SYSTEM_CERTS_PATH)) {
certfile = _SYSTEM_CERTS_PATH;
} else if (da->file_exists("/etc/ssl/certs/ca-certificates.crt")) {
// Debian/Ubuntu
certfile = "/etc/ssl/certs/ca-certificates.crt";
} else if (da->file_exists("/etc/pki/ca-trust/extracted/pem/tls-ca-bundle.pem")) {
// Fedora
certfile = "/etc/pki/ca-trust/extracted/pem/tls-ca-bundle.pem";
} else if (da->file_exists("/etc/ca-certificates/extracted/tls-ca-bundle.pem")) {
// Arch Linux
certfile = "/etc/ca-certificates/extracted/tls-ca-bundle.pem";
} else if (da->file_exists("/var/lib/ca-certificates/ca-bundle.pem")) {
// openSUSE
certfile = "/var/lib/ca-certificates/ca-bundle.pem";
} else if (da->file_exists("/etc/ssl/cert.pem")) {
// FreeBSD/OpenBSD
certfile = "/etc/ssl/cert.pem";
}
if (certfile.is_empty()) {
return "";
}
Ref<FileAccess> f = FileAccess::open(certfile, FileAccess::READ);
ERR_FAIL_COND_V_MSG(f.is_null(), "", vformat("Failed to open system CA certificates file: '%s'", certfile));
return f->get_as_text();
}
OS_LinuxBSD::OS_LinuxBSD() {
main_loop = nullptr;
#ifdef PULSEAUDIO_ENABLED
AudioDriverManager::add_driver(&driver_pulseaudio);
#endif
#ifdef ALSA_ENABLED
AudioDriverManager::add_driver(&driver_alsa);
#endif
#ifdef X11_ENABLED
DisplayServerX11::register_x11_driver();
#endif
#ifdef FONTCONFIG_ENABLED
#ifdef SOWRAP_ENABLED
#ifdef DEBUG_ENABLED
int dylibloader_verbose = 1;
#else
int dylibloader_verbose = 0;
#endif
font_config_initialized = (initialize_fontconfig(dylibloader_verbose) == 0);
#else
font_config_initialized = true;
#endif
if (font_config_initialized) {
bool ver_ok = false;
int version = FcGetVersion();
ver_ok = ((version / 100 / 100) == 2 && (version / 100 % 100) >= 11) || ((version / 100 / 100) > 2); // 2.11.0
print_verbose(vformat("FontConfig %d.%d.%d detected.", version / 100 / 100, version / 100 % 100, version % 100));
if (!ver_ok) {
font_config_initialized = false;
}
}
if (font_config_initialized) {
config = FcInitLoadConfigAndFonts();
if (!config) {
font_config_initialized = false;
}
object_set = FcObjectSetBuild(FC_FAMILY, FC_FILE, nullptr);
if (!object_set) {
font_config_initialized = false;
}
}
#endif // FONTCONFIG_ENABLED
}
OS_LinuxBSD::~OS_LinuxBSD() {
#ifdef FONTCONFIG_ENABLED
if (object_set) {
FcObjectSetDestroy(object_set);
}
if (config) {
FcConfigDestroy(config);
}
#endif // FONTCONFIG_ENABLED
}
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