mirror of
https://github.com/ZDoom/Raze.git
synced 2024-11-17 09:51:28 +00:00
404 lines
8.9 KiB
C++
404 lines
8.9 KiB
C++
/*
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** i_system.cpp
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** Main startup code
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**
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**---------------------------------------------------------------------------
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** Copyright 1999-2016 Randy Heit
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** Copyright 2019-2020 Christoph Oelckers
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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**
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** 3. The name of the author may not be used to endorse or promote products
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** derived from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**---------------------------------------------------------------------------
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**
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*/
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#include "i_system.h"
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#include <dirent.h>
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#include <sys/wait.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <fnmatch.h>
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#include <unistd.h>
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#include <stdarg.h>
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#include <fcntl.h>
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#include <time.h>
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#include <SDL.h>
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#include "version.h"
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#include "cmdlib.h"
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#include "m_argv.h"
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#include "i_sound.h"
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#include "c_dispatch.h"
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#include "gamecontrol.h"
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#include "gameconfigfile.h"
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extern "C"
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{
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double SecondsPerCycle = 1e-8;
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double CyclesPerSecond = 1e8;
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}
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#ifndef NO_GTK
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bool I_GtkAvailable ();
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int I_PickIWad_Gtk (WadStuff *wads, int numwads, bool showwin, int defaultiwad);
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void I_ShowFatalError_Gtk(const char* errortext);
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#elif defined(__APPLE__)
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int I_PickIWad_Cocoa (WadStuff *wads, int numwads, bool showwin, int defaultiwad);
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#endif
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double PerfToSec, PerfToMillisec;
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void I_BeginRead(void)
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{
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}
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void I_EndRead(void)
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{
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}
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//
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// I_Init
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//
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void I_Init (void)
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{
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#if 0 // do we need this?
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CheckCPUID (&CPU);
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DumpCPUInfo (&CPU);
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#endif
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}
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//
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// I_Error
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//
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extern FILE *Logfile;
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#ifdef __APPLE__
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void Mac_I_FatalError(const char* errortext);
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#endif
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#ifdef __linux__
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void Linux_I_FatalError(const char* errortext)
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{
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// Close window or exit fullscreen and release mouse capture
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SDL_Quit();
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const char *str;
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if((str=getenv("KDE_FULL_SESSION")) && strcmp(str, "true") == 0)
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{
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FString cmd;
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cmd << "kdialog --title \"" GAMENAME " " << GetVersionString()
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<< "\" --msgbox \"" << errortext << "\"";
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popen(cmd, "r");
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}
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#ifndef NO_GTK
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else if (I_GtkAvailable())
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{
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I_ShowFatalError_Gtk(errortext);
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}
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#endif
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else
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{
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FString title;
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title << GAMENAME " " << GetVersionString();
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if (SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, title, errortext, NULL) < 0)
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{
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printf("\n%s\n", errortext);
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}
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}
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}
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#endif
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void I_ShowFatalError(const char *message)
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{
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#ifdef __APPLE__
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Mac_I_FatalError(message);
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#elif defined __linux__
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Linux_I_FatalError(message);
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#else
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// ???
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#endif
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}
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void I_SetIWADInfo ()
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{
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}
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void I_DebugPrint(const char *cp)
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{
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}
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void I_PrintStr(const char *cp)
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{
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// Strip out any color escape sequences before writing to debug output
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TArray<char> copy(strlen(cp) + 1, true);
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const char * srcp = cp;
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char * dstp = copy.Data();
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while (*srcp != 0)
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{
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if (*srcp != 0x1c && *srcp != 0x1d && *srcp != 0x1e && *srcp != 0x1f)
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{
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*dstp++ = *srcp++;
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}
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else
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{
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if (srcp[1] != 0) srcp += 2;
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else break;
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}
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}
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*dstp = 0;
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fputs(copy.Data(), stdout);
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fflush(stdout);
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}
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int I_PickIWad (WadStuff *wads, int numwads, bool showwin, int defaultiwad)
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{
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int i;
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if (!showwin)
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{
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return defaultiwad;
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}
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#ifndef __APPLE__
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const char *str;
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if((str=getenv("KDE_FULL_SESSION")) && strcmp(str, "true") == 0)
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{
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FString cmd("kdialog --title \"" GAMENAME " ");
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cmd << GetVersionString() << ": Select an IWAD to use\""
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" --menu \"" GAMENAME " found more than one IWAD\n"
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"Select from the list below to determine which one to use:\"";
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for(i = 0; i < numwads; ++i)
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{
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const char *filepart = strrchr(wads[i].Path, '/');
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if(filepart == NULL)
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filepart = wads[i].Path;
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else
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filepart++;
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// Menu entries are specified in "tag" "item" pairs, where when a
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// particular item is selected (and the Okay button clicked), its
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// corresponding tag is printed to stdout for identification.
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cmd.AppendFormat(" \"%d\" \"%s (%s)\"", i, wads[i].Name.GetChars(), filepart);
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}
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if(defaultiwad >= 0 && defaultiwad < numwads)
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{
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const char *filepart = strrchr(wads[defaultiwad].Path, '/');
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if(filepart == NULL)
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filepart = wads[defaultiwad].Path;
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else
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filepart++;
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cmd.AppendFormat(" --default \"%s (%s)\"", wads[defaultiwad].Name.GetChars(), filepart);
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}
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FILE *f = popen(cmd, "r");
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if(f != NULL)
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{
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char gotstr[16];
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if(fgets(gotstr, sizeof(gotstr), f) == NULL ||
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sscanf(gotstr, "%d", &i) != 1)
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i = -1;
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// Exit status = 1 means the selection was canceled (either by
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// Cancel/Esc or the X button), not that there was an error running
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// the program. In that case, nothing was printed so fgets will
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// have failed. Other values can indicate an error running the app,
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// so fall back to whatever else can be used.
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int status = pclose(f);
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if(WIFEXITED(status) && (WEXITSTATUS(status) == 0 || WEXITSTATUS(status) == 1))
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return i;
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}
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}
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#endif
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#ifndef NO_GTK
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if (I_GtkAvailable())
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{
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return I_PickIWad_Gtk (wads, numwads, showwin, defaultiwad);
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}
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#endif
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#ifdef __APPLE__
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return I_PickIWad_Cocoa (wads, numwads, showwin, defaultiwad);
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#endif
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if (!isatty(fileno(stdin)))
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{
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return defaultiwad;
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}
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printf ("Please select a game wad (or 0 to exit):\n");
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for (i = 0; i < numwads; ++i)
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{
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const char *filepart = strrchr (wads[i].Path, '/');
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if (filepart == NULL)
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filepart = wads[i].Path;
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else
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filepart++;
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printf ("%d. %s (%s)\n", i+1, wads[i].Name.GetChars(), filepart);
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}
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printf ("Which one? ");
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if (scanf ("%d", &i) != 1 || i > numwads)
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return -1;
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return i-1;
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}
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bool I_WriteIniFailed ()
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{
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printf ("The config file %s could not be saved:\n%s\n", GameConfig->GetPathName(), strerror(errno));
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return false;
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// return true to retry
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}
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static const char *pattern;
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#if defined(__APPLE__) && MAC_OS_X_VERSION_MAX_ALLOWED < 1080
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static int matchfile (struct dirent *ent)
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#else
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static int matchfile (const struct dirent *ent)
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#endif
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{
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return fnmatch (pattern, ent->d_name, FNM_NOESCAPE) == 0;
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}
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void *I_FindFirst (const char *filespec, findstate_t *fileinfo)
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{
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FString dir;
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const char *slash = strrchr (filespec, '/');
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if (slash)
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{
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pattern = slash+1;
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dir = FString(filespec, slash-filespec+1);
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}
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else
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{
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pattern = filespec;
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dir = ".";
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}
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fileinfo->current = 0;
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fileinfo->count = scandir (dir.GetChars(), &fileinfo->namelist,
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matchfile, alphasort);
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if (fileinfo->count > 0)
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{
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return fileinfo;
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}
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return (void*)-1;
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}
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int I_FindNext (void *handle, findstate_t *fileinfo)
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{
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findstate_t *state = (findstate_t *)handle;
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if (state->current < fileinfo->count)
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{
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return ++state->current < fileinfo->count ? 0 : -1;
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}
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return -1;
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}
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int I_FindClose (void *handle)
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{
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findstate_t *state = (findstate_t *)handle;
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if (handle != (void*)-1 && state->count > 0)
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{
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for(int i = 0;i < state->count;++i)
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free (state->namelist[i]);
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state->count = 0;
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free (state->namelist);
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state->namelist = NULL;
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}
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return 0;
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}
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int I_FindAttr(findstate_t* const fileinfo)
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{
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dirent* const ent = fileinfo->namelist[fileinfo->current];
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bool isdir;
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if (DirEntryExists(ent->d_name, &isdir))
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{
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return isdir ? FA_DIREC : 0;
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}
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return 0;
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}
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void I_PutInClipboard (const char *str)
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{
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SDL_SetClipboardText(str);
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}
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FString I_GetFromClipboard (bool use_primary_selection)
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{
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if(char *ret = SDL_GetClipboardText())
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{
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FString text(ret);
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SDL_free(ret);
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return text;
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}
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return "";
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}
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// Return a random seed, preferably one with lots of entropy.
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unsigned int I_MakeRNGSeed()
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{
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unsigned int seed;
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int file;
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// Try reading from /dev/urandom first, then /dev/random, then
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// if all else fails, use a crappy seed from time().
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seed = time(NULL);
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file = open("/dev/urandom", O_RDONLY);
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if (file < 0)
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{
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file = open("/dev/random", O_RDONLY);
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}
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if (file >= 0)
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{
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read(file, &seed, sizeof(seed));
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close(file);
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}
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return seed;
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}
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TArray<FString> I_GetGogPaths()
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{
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// GOG's Doom games are Windows only at the moment
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return TArray<FString>();
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}
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