mirror of
https://github.com/kanjitalk755/macemu.git
synced 2024-06-15 08:29:35 +00:00
ae9d917d5e
Patches obtained from https://github.com/NetBSD/pkgsrc/blob/trunk/emulators/BasiliskII/
290 lines
7.8 KiB
C++
290 lines
7.8 KiB
C++
/*
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* prefs_unix.cpp - Preferences handling, Unix specific stuff
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*
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* Basilisk II, SheepShaver (C) 1997-2008 Christian Bauer and Marc Hellwig
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "sysdeps.h"
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#include <sys/stat.h>
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#include <errno.h>
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#include <string>
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using std::string;
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#include "prefs.h"
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// Platform-specific preferences items
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prefs_desc platform_prefs_items[] = {
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#ifdef SHEEPSHAVER
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{"ether", TYPE_STRING, false, "device name of Mac ethernet adapter"},
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{"etherconfig", TYPE_STRING, false, "path of network config script"},
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{"keycodes", TYPE_BOOLEAN, false, "use keycodes rather than keysyms to decode keyboard"},
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{"keycodefile", TYPE_STRING, false, "path of keycode translation file"},
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{"mousewheelmode", TYPE_INT32, false, "mouse wheel support mode (0=page up/down, 1=cursor up/down)"},
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{"mousewheellines", TYPE_INT32, false, "number of lines to scroll in mouse wheel mode 1"},
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#else
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{"fbdevicefile", TYPE_STRING, false, "path of frame buffer device specification file"},
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#endif
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{"dsp", TYPE_STRING, false, "audio output (dsp) device name"},
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{"mixer", TYPE_STRING, false, "audio mixer device name"},
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{"idlewait", TYPE_BOOLEAN, false, "sleep when idle"},
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#ifdef USE_SDL_VIDEO
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{"sdlrender", TYPE_STRING, false, "SDL_Renderer driver (\"auto\", \"software\" (may be faster), etc.)"},
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#endif
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{NULL, TYPE_END, false, NULL} // End of list
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};
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// Standard file names and paths
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#ifdef SHEEPSHAVER
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static const char PREFS_FILE_NAME[] = "/.sheepshaver_prefs";
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static const char XDG_PREFS_FILE_NAME[] = "/prefs";
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static const char XPRAM_FILE_NAME[] = "/.sheepshaver_nvram";
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static const char XDG_XPRAM_FILE_NAME[] = "/nvram";
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static const char XDG_CONFIG_SUBDIR[] = "/SheepShaver";
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#else
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static const char PREFS_FILE_NAME[] = "/.basilisk_ii_prefs";
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static const char XDG_PREFS_FILE_NAME[] = "/prefs";
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static const char XPRAM_FILE_NAME[] = "/.basilisk_ii_xpram";
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static const char XDG_XPRAM_FILE_NAME[] = "/xpram";
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static const char XDG_CONFIG_SUBDIR[] = "/BasiliskII";
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#endif
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// Prefs file name and path
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string UserPrefsPath;
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static string home_dir;
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static string xdg_config_dir;
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static string prefs_name;
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extern string xpram_name;
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static string get_xdg_config_dir(void)
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{
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char *env;
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if (env = getenv("XDG_CONFIG_HOME"))
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return string(env) + XDG_CONFIG_SUBDIR;
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if (env = getenv("HOME"))
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return string(env) + "/.config" + XDG_CONFIG_SUBDIR;
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return "";
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}
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static string get_home_dir(void)
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{
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char *env;
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if(env = getenv("HOME"))
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return string(env);
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return "."; // last resort, use the current directory
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}
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static string get_dir(string *path)
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{
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int pos = path->find_last_of('/');
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if (pos == 0)
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return ""; // file is in root folder
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if (pos == std::string::npos)
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return "."; // file is in current folder
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return path->substr(0, pos);
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}
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static void exit_if_dir(const string& path)
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{
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struct stat info;
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if (stat(path.c_str(), &info) != 0){
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return;
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}
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if ((info.st_mode & S_IFDIR) != 0)
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{
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fprintf(stderr, "ERROR: Cannot open %s (Is a directory)\n", prefs_name.c_str());
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exit(1);
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}
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}
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static bool load_prefs_file(const string& path, bool exit_on_failure)
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{
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exit_if_dir(path);
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FILE *prefs = fopen(path.c_str(), "r");
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if (prefs != NULL)
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{
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LoadPrefsFromStream(prefs);
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fclose(prefs);
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printf("Using prefs file at %s\n", prefs_name.c_str());
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return true;
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}
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else if (exit_on_failure)
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{
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fprintf(stderr, "ERROR: Could not load prefs file from %s (%s)\n",
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path.c_str(), strerror(errno));
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exit(1);
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}
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return false;
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}
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/*
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* Look for prefs file in the following locations (in order of priority):
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* 1. From vmdir/.basilisk_ii_prefs if a vmdir has been specified
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* 2. From path specified with --config command line
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* 3. From $HOME/.basilisk_ii_prefs if it exists
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* 4. From $XDG_CONFIG_HOME/BasiliskII/prefs if it exists
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* 5. Create a new prefs file at $XDG_CONFIG_HOME/BasiliskII/prefs
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* (or the equivalent paths for SheepShaver)
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* If $XDG_CONFIG_HOME doesn't exist, $HOME/.config is used instead,
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* in accordance with XDG Base Directory Specification:
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* https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html
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*/
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void LoadPrefs(const char* vmdir)
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{
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home_dir = get_home_dir();
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xdg_config_dir = get_xdg_config_dir();
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// vmdir was specified on the command line
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if (vmdir)
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{
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prefs_name = string(vmdir) + XDG_PREFS_FILE_NAME;
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xpram_name = string(vmdir) + XDG_XPRAM_FILE_NAME;
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if (load_prefs_file(prefs_name, true))
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return;
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}
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// --config was specified
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if (!UserPrefsPath.empty())
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{
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prefs_name = UserPrefsPath;
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xpram_name = get_dir(&prefs_name) + XPRAM_FILE_NAME;
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if (load_prefs_file(prefs_name, true))
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return;
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}
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// Load .basilisk_ii_prefs from $HOME if it exists
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if (!home_dir.empty())
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{
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prefs_name = home_dir + PREFS_FILE_NAME;
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xpram_name = home_dir + XPRAM_FILE_NAME;
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if (load_prefs_file(prefs_name, false))
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return;
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}
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// If no other prefs file exists, try the $XDG_CONFIG_HOME directory
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if (!xdg_config_dir.empty())
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{
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prefs_name = xdg_config_dir + XDG_PREFS_FILE_NAME;
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xpram_name = xdg_config_dir + XDG_XPRAM_FILE_NAME;
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if (load_prefs_file(prefs_name, false))
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return;
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}
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// No prefs file, save defaults in $XDG_CONFIG_HOME directory
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#ifdef __linux__
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PrefsAddString("cdrom", "/dev/cdrom");
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#endif
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printf("No prefs file found, creating new one at %s\n", prefs_name.c_str());
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SavePrefs();
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}
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static bool is_dir(const string& path)
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{
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struct stat info;
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if (stat(path.c_str(), &info) != 0){
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return false;
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}
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return (info.st_mode & S_IFDIR) != 0;
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}
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static bool create_directories(const string& path, mode_t mode)
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{
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if (mkdir(path.c_str(), mode) == 0)
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return true;
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switch (errno)
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{
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case ENOENT:
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{
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int pos = path.find_last_of('/');
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if (pos == std::string::npos)
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return false;
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if (!create_directories(path.substr(0,pos),mode))
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return false;
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}
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return 0 == mkdir(path.c_str(),mode);
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case EEXIST:
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return is_dir(path);
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default:
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return false;
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}
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}
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/*
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* Save preferences to settings file
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*/
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void SavePrefs(void)
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{
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FILE *f;
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string prefs_dir = get_dir(&prefs_name);
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if (!prefs_dir.empty() && !is_dir(prefs_dir))
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{
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create_directories(prefs_dir, 0700);
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}
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if ((f = fopen(prefs_name.c_str(), "w")) != NULL)
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{
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SavePrefsToStream(f);
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fclose(f);
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}
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else
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{
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fprintf(stderr, "WARNING: Unable to save %s (%s)\n",
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prefs_name.c_str(), strerror(errno));
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}
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}
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/*
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* Add defaults of platform-specific prefs items
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* You may also override the defaults set in PrefsInit()
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*/
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void AddPlatformPrefsDefaults(void)
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{
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PrefsAddBool("keycodes", false);
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PrefsReplaceString("extfs", "/");
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PrefsReplaceInt32("mousewheelmode", 1);
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PrefsReplaceInt32("mousewheellines", 3);
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#ifdef __linux__
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if (access("/dev/sound/dsp", F_OK) == 0)
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{
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PrefsReplaceString("dsp", "/dev/sound/dsp");
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}
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else
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{
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PrefsReplaceString("dsp", "/dev/dsp");
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}
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if (access("/dev/sound/mixer", F_OK) == 0)
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{
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PrefsReplaceString("mixer", "/dev/sound/mixer");
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}
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else
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{
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PrefsReplaceString("mixer", "/dev/mixer");
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}
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#elif defined (__NetBSD__)
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PrefsReplaceString("dsp", "/dev/audio");
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PrefsReplaceString("mixer", "/dev/mixer");
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#else
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PrefsReplaceString("dsp", "/dev/dsp");
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PrefsReplaceString("mixer", "/dev/mixer");
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#endif
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PrefsAddBool("idlewait", true);
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}
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