mirror of
https://github.com/dhewm/dhewm3.git
synced 2024-11-29 23:51:49 +00:00
c333a46373
Before checking there I look for gamedata next to the executable, but the check was broken: I got the directory the executable is in and checked if it exists.. well.. of course it does, but that doesn't mean there's game data in it.. So now I check if that directory actually has a "base/" subdirectory (or whatever is #defined in BASE_GAMEDIR) and if that fails /usr/local/games/doom3/ is tried instead. Thanks chungy for pointing the bug out in #97 !
303 lines
8.1 KiB
C++
303 lines
8.1 KiB
C++
/*
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===========================================================================
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Doom 3 GPL Source Code
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Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company.
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This file is part of the Doom 3 GPL Source Code ("Doom 3 Source Code").
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Doom 3 Source Code 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 3 of the License, or
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(at your option) any later version.
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Doom 3 Source Code 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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You should have received a copy of the GNU General Public License
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along with Doom 3 Source Code. If not, see <http://www.gnu.org/licenses/>.
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In addition, the Doom 3 Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 Source Code. If not, please request a copy in writing from id Software at the address below.
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If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
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===========================================================================
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*/
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#include <errno.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include <SDL_main.h>
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#include "sys/platform.h"
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#include "framework/Licensee.h"
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#include "framework/FileSystem.h"
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#include "sys/posix/posix_public.h"
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#include "sys/sys_local.h"
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#include <locale.h>
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static char path_argv[MAX_OSPATH];
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bool Sys_GetPath(sysPath_t type, idStr &path) {
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const char *s;
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char buf[MAX_OSPATH];
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char buf2[MAX_OSPATH];
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struct stat st;
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size_t len;
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path.Clear();
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switch(type) {
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case PATH_BASE:
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if (stat(BUILD_DATADIR, &st) != -1 && S_ISDIR(st.st_mode)) {
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path = BUILD_DATADIR;
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return true;
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}
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common->Warning("base path '" BUILD_DATADIR "' does not exist");
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// try next to the executable..
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if (Sys_GetPath(PATH_EXE, path)) {
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path = path.StripFilename();
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// the path should have a base dir in it, otherwise it probably just contains the executable
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idStr testPath = path + "/" BASE_GAMEDIR;
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if (stat(testPath.c_str(), &st) != -1 && S_ISDIR(st.st_mode)) {
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common->Warning("using path of executable: %s", path.c_str());
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return true;
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} else {
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path.Clear();
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}
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}
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// fallback to vanilla doom3 install
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if (stat(LINUX_DEFAULT_PATH, &st) != -1 && S_ISDIR(st.st_mode)) {
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common->Warning("using hardcoded default base path: " LINUX_DEFAULT_PATH);
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path = LINUX_DEFAULT_PATH;
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return true;
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}
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return false;
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case PATH_CONFIG:
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s = getenv("XDG_CONFIG_HOME");
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if (s)
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idStr::snPrintf(buf, sizeof(buf), "%s/dhewm3", s);
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else
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idStr::snPrintf(buf, sizeof(buf), "%s/.config/dhewm3", getenv("HOME"));
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path = buf;
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return true;
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case PATH_SAVE:
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s = getenv("XDG_DATA_HOME");
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if (s)
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idStr::snPrintf(buf, sizeof(buf), "%s/dhewm3", s);
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else
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idStr::snPrintf(buf, sizeof(buf), "%s/.local/share/dhewm3", getenv("HOME"));
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path = buf;
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return true;
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case PATH_EXE:
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idStr::snPrintf(buf, sizeof(buf), "/proc/%d/exe", getpid());
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len = readlink(buf, buf2, sizeof(buf2));
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if (len != -1) {
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path = buf2;
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return true;
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}
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if (path_argv[0] != 0) {
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path = path_argv;
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return true;
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}
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return false;
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}
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return false;
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}
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/*
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===============
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Sys_Shutdown
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===============
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*/
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void Sys_Shutdown( void ) {
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Posix_Shutdown();
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}
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/*
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================
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Sys_GetSystemRam
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returns in megabytes
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================
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*/
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int Sys_GetSystemRam( void ) {
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long count, page_size;
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int mb;
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count = sysconf( _SC_PHYS_PAGES );
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if ( count == -1 ) {
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common->Printf( "GetSystemRam: sysconf _SC_PHYS_PAGES failed\n" );
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return 512;
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}
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page_size = sysconf( _SC_PAGE_SIZE );
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if ( page_size == -1 ) {
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common->Printf( "GetSystemRam: sysconf _SC_PAGE_SIZE failed\n" );
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return 512;
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}
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mb= (int)( (double)count * (double)page_size / ( 1024 * 1024 ) );
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// round to the nearest 16Mb
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mb = ( mb + 8 ) & ~15;
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return mb;
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}
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/*
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==================
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Sys_DoStartProcess
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if we don't fork, this function never returns
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the no-fork lets you keep the terminal when you're about to spawn an installer
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if the command contains spaces, system() is used. Otherwise the more straightforward execl ( system() blows though )
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==================
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*/
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void Sys_DoStartProcess( const char *exeName, bool dofork ) {
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bool use_system = false;
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if ( strchr( exeName, ' ' ) ) {
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use_system = true;
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} else {
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// set exec rights when it's about a single file to execute
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struct stat buf;
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if ( stat( exeName, &buf ) == -1 ) {
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printf( "stat %s failed: %s\n", exeName, strerror( errno ) );
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} else {
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if ( chmod( exeName, buf.st_mode | S_IXUSR ) == -1 ) {
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printf( "cmod +x %s failed: %s\n", exeName, strerror( errno ) );
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}
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}
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}
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if ( dofork ) {
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switch ( fork() ) {
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case -1:
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printf( "fork failed: %s\n", strerror( errno ) );
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break;
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case 0:
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if ( use_system ) {
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printf( "system %s\n", exeName );
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if (system( exeName ) == -1)
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printf( "system failed: %s\n", strerror( errno ) );
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_exit( 0 );
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} else {
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printf( "execl %s\n", exeName );
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execl( exeName, exeName, NULL );
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printf( "execl failed: %s\n", strerror( errno ) );
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_exit( -1 );
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}
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break;
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default:
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break;
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}
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} else {
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if ( use_system ) {
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printf( "system %s\n", exeName );
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if (system( exeName ) == -1)
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printf( "system failed: %s\n", strerror( errno ) );
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else
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sleep( 1 ); // on some systems I've seen that starting the new process and exiting this one should not be too close
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} else {
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printf( "execl %s\n", exeName );
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execl( exeName, exeName, NULL );
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printf( "execl failed: %s\n", strerror( errno ) );
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}
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// terminate
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_exit( 0 );
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}
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}
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/*
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=================
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Sys_OpenURL
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=================
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*/
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void idSysLocal::OpenURL( const char *url, bool quit ) {
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const char *script_path;
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idFile *script_file;
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char cmdline[ 1024 ];
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static bool quit_spamguard = false;
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if ( quit_spamguard ) {
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common->DPrintf( "Sys_OpenURL: already in a doexit sequence, ignoring %s\n", url );
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return;
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}
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common->Printf( "Open URL: %s\n", url );
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// opening an URL on *nix can mean a lot of things ..
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// just spawn a script instead of deciding for the user :-)
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// look in the savepath first, then in the basepath
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script_path = fileSystem->BuildOSPath( cvarSystem->GetCVarString( "fs_savepath" ), "", "openurl.sh" );
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script_file = fileSystem->OpenExplicitFileRead( script_path );
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if ( !script_file ) {
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script_path = fileSystem->BuildOSPath( cvarSystem->GetCVarString( "fs_basepath" ), "", "openurl.sh" );
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script_file = fileSystem->OpenExplicitFileRead( script_path );
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}
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if ( !script_file ) {
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common->Printf( "Can't find URL script 'openurl.sh' in either savepath or basepath\n" );
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common->Printf( "OpenURL '%s' failed\n", url );
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return;
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}
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fileSystem->CloseFile( script_file );
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// if we are going to quit, only accept a single URL before quitting and spawning the script
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if ( quit ) {
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quit_spamguard = true;
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}
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common->Printf( "URL script: %s\n", script_path );
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// StartProcess is going to execute a system() call with that - hence the &
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idStr::snPrintf( cmdline, 1024, "%s '%s' &", script_path, url );
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sys->StartProcess( cmdline, quit );
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}
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/*
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===============
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main
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===============
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*/
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int main(int argc, char **argv) {
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// fallback path to the binary for systems without /proc
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// while not 100% reliable, its good enough
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if (argc > 0) {
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if (!realpath(argv[0], path_argv))
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path_argv[0] = 0;
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} else {
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path_argv[0] = 0;
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}
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// some ladspa-plugins (that may be indirectly loaded by doom3 if they're
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// used by alsa) call setlocale(LC_ALL, ""); This sets LC_ALL to $LANG or
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// $LC_ALL which usually is not "C" and will fuck up scanf, strtod
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// etc when using a locale that uses ',' as a float radix.
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// so set $LC_ALL to "C".
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setenv("LC_ALL", "C", 1);
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if ( argc > 1 ) {
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common->Init( argc-1, &argv[1] );
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} else {
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common->Init( 0, NULL );
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}
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while (1) {
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common->Frame();
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}
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return 0;
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}
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