1 files changed, 457 insertions, 0 deletions

diff --git a/apps/plugins/sdl/progs/quake/sys_linux.c b/apps/plugins/sdl/progs/quake/sys_linux.c
new file mode 100644
index 0000000000..8a29cfac76
--- /dev/null
+++ b/apps/plugins/sdl/progs/quake/sys_linux.c
@@ -0,0 +1,457 @@
+#include <unistd.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <limits.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <sys/ipc.h>
+#include <sys/shm.h>
+#include <sys/stat.h>
+#include <string.h>
+#include <ctype.h>
+#include <sys/wait.h>
+#include <sys/mman.h>
+#include <errno.h>
+
+#include "quakedef.h"
+
+qboolean                        isDedicated;
+
+int nostdout = 0;
+
+char *basedir = ".";
+char *cachedir = "/tmp";
+
+cvar_t  sys_linerefresh = {"sys_linerefresh","0"};// set for entity display
+
+// =======================================================================
+// General routines
+// =======================================================================
+
+void Sys_DebugNumber(int y, int val)
+{
+}
+
+/*
+void Sys_Printf (char *fmt, ...)
+{
+        va_list         argptr;
+        char            text[1024];
+        
+        va_start (argptr,fmt);
+        vsprintf (text,fmt,argptr);
+        va_end (argptr);
+        fprintf(stderr, "%s", text);
+        
+        Con_Print (text);
+}
+
+void Sys_Printf (char *fmt, ...)
+{
+
+    va_list     argptr;
+    char        text[1024], *t_p;
+    int         l, r;
+
+        if (nostdout)
+                return;
+
+    va_start (argptr,fmt);
+    vsprintf (text,fmt,argptr);
+    va_end (argptr);
+
+    l = strlen(text);
+    t_p = text;
+
+// make sure everything goes through, even though we are non-blocking
+    while (l)
+    {
+        r = write (1, text, l);
+        if (r != l)
+            sleep (0);
+        if (r > 0)
+        {
+            t_p += r;
+            l -= r;
+        }
+    }
+
+}
+*/
+
+void Sys_Printf (char *fmt, ...)
+{
+        va_list         argptr;
+        char            text[1024];
+        unsigned char           *p;
+
+        va_start (argptr,fmt);
+        vsprintf (text,fmt,argptr);
+        va_end (argptr);
+
+        if (strlen(text) > sizeof(text))
+                Sys_Error("memory overwrite in Sys_Printf");
+
+    if (nostdout)
+        return;
+
+        for (p = (unsigned char *)text; *p; p++) {
+                *p &= 0x7f;
+                if ((*p > 128 || *p < 32) && *p != 10 && *p != 13 && *p != 9)
+                        printf("[%02x]", *p);
+                else
+                        putc(*p, stdout);
+        }
+}
+
+#if 0
+static char end1[] =
+"\x1b[?7h\x1b[40m\x1b[2J\x1b[0;1;41m\x1b[1;1H                QUAKE: The Doomed Dimension \x1b[33mby \x1b[44mid\x1b[41m Software                      \x1b[2;1H  ----------------------------------------------------------------------------  \x1b[3;1H           CALL 1-800-IDGAMES TO ORDER OR FOR TECHNICAL SUPPORT                 \x1b[4;1H             PRICE: $45.00 (PRICES MAY VARY OUTSIDE THE US.)                    \x1b[5;1H                                                                                \x1b[6;1H  \x1b[37mYes! You only have one fourth of this incredible epic. That is because most   \x1b[7;1H   of you have paid us nothing or at most, very little. You could steal the     \x1b[8;1H   game from a friend. But we both know you'll be punished by God if you do.    \x1b[9;1H        \x1b[33mWHY RISK ETERNAL DAMNATION? CALL 1-800-IDGAMES AND BUY NOW!             \x1b[10;1H             \x1b[37mRemember, we love you almost as much as He does.                   \x1b[11;1H                                                                                \x1b[12;1H            \x1b[33mProgramming: \x1b[37mJohn Carmack, Michael Abrash, John Cash                \x1b[13;1H       \x1b[33mDesign: \x1b[37mJohn Romero, Sandy Petersen, American McGee, Tim Willits         \x1b[14;1H                     \x1b[33mArt: \x1b[37mAdrian Carmack, Kevin Cloud                           \x1b[15;1H               \x1b[33mBiz: \x1b[37mJay Wilbur, Mike Wilson, Donna Jackson                      \x1b[16;1H            \x1b[33mProjects: \x1b[37mShawn Green   \x1b[33mSupport: \x1b[37mBarrett Alexander                  \x1b[17;1H              \x1b[33mSound Effects: \x1b[37mTrent Reznor and Nine Inch Nails                   \x1b[18;1H  For other information or details on ordering outside the US, check out the    \x1b[19;1H     files accompanying QUAKE or our website at http://www.idsoftware.com.      \x1b[20;1H    \x1b[0;41mQuake is a trademark of Id Software, inc., (c)1996 Id Software, inc.        \x1b[21;1H     All rights reserved. NIN logo is a registered trademark licensed to        \x1b[22;1H                 Nothing Interactive, Inc. All rights reserved.                 \x1b[40m\x1b[23;1H\x1b[0m";
+static char end2[] =
+"\x1b[?7h\x1b[40m\x1b[2J\x1b[0;1;41m\x1b[1;1H        QUAKE \x1b[33mby \x1b[44mid\x1b[41m Software                                                    \x1b[2;1H -----------------------------------------------------------------------------  \x1b[3;1H        \x1b[37mWhy did you quit from the registered version of QUAKE? Did the          \x1b[4;1H        scary monsters frighten you? Or did Mr. Sandman tug at your             \x1b[5;1H        little lids? No matter! What is important is you love our               \x1b[6;1H        game, and gave us your money. Congratulations, you are probably         \x1b[7;1H        not a thief.                                                            \x1b[8;1H                                                           Thank You.           \x1b[9;1H        \x1b[33;44mid\x1b[41m Software is:                                                         \x1b[10;1H        PROGRAMMING: \x1b[37mJohn Carmack, Michael Abrash, John Cash                    \x1b[11;1H        \x1b[33mDESIGN: \x1b[37mJohn Romero, Sandy Petersen, American McGee, Tim Willits        \x1b[12;1H        \x1b[33mART: \x1b[37mAdrian Carmack, Kevin Cloud                                        \x1b[13;1H        \x1b[33mBIZ: \x1b[37mJay Wilbur, Mike Wilson     \x1b[33mPROJECTS MAN: \x1b[37mShawn Green              \x1b[14;1H        \x1b[33mBIZ ASSIST: \x1b[37mDonna Jackson        \x1b[33mSUPPORT: \x1b[37mBarrett Alexander             \x1b[15;1H        \x1b[33mSOUND EFFECTS AND MUSIC: \x1b[37mTrent Reznor and Nine Inch Nails               \x1b[16;1H                                                                                \x1b[17;1H        If you need help running QUAKE refer to the text files in the           \x1b[18;1H        QUAKE directory, or our website at http://www.idsoftware.com.           \x1b[19;1H        If all else fails, call our technical support at 1-800-IDGAMES.         \x1b[20;1H      \x1b[0;41mQuake is a trademark of Id Software, inc., (c)1996 Id Software, inc.      \x1b[21;1H        All rights reserved. NIN logo is a registered trademark licensed        \x1b[22;1H             to Nothing Interactive, Inc. All rights reserved.                  \x1b[23;1H\x1b[40m\x1b[0m";
+
+#endif
+void Sys_Quit (void)
+{
+        Host_Shutdown();
+    fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~FNDELAY);
+#if 0
+        if (registered.value)
+                printf("%s", end2);
+        else
+                printf("%s", end1);
+#endif
+        fflush(stdout);
+        exit(0);
+}
+
+void Sys_Init(void)
+{
+#if id386
+        Sys_SetFPCW();
+#endif
+}
+
+void Sys_Error (char *error, ...)
+{ 
+    va_list     argptr;
+    char        string[1024];
+
+// change stdin to non blocking
+    fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~FNDELAY);
+    
+    va_start (argptr,error);
+    vsprintf (string,error,argptr);
+    va_end (argptr);
+        fprintf(stderr, "Error: %s\n", string);
+
+        Host_Shutdown ();
+        exit (1);
+
+} 
+
+void Sys_Warn (char *warning, ...)
+{ 
+    va_list     argptr;
+    char        string[1024];
+    
+    va_start (argptr,warning);
+    vsprintf (string,warning,argptr);
+    va_end (argptr);
+        fprintf(stderr, "Warning: %s", string);
+} 
+
+/*
+============
+Sys_FileTime
+
+returns -1 if not present
+============
+*/
+int     Sys_FileTime (char *path)
+{
+        struct  stat    buf;
+        
+        if (stat (path,&buf) == -1)
+                return -1;
+        
+        return buf.st_mtime;
+}
+
+
+void Sys_mkdir (char *path)
+{
+    mkdir (path, 0777);
+}
+
+int Sys_FileOpenRead (char *path, int *handle)
+{
+        int     h;
+        struct stat     fileinfo;
+    
+        
+        h = open (path, O_RDONLY, 0666);
+        *handle = h;
+        if (h == -1)
+                return -1;
+        
+        if (fstat (h,&fileinfo) == -1)
+                Sys_Error ("Error fstating %s", path);
+
+        return fileinfo.st_size;
+}
+
+int Sys_FileOpenWrite (char *path)
+{
+        int     handle;
+
+        umask (0);
+        
+        handle = open(path,O_RDWR | O_CREAT | O_TRUNC
+        , 0666);
+
+        if (handle == -1)
+                Sys_Error ("Error opening %s: %s", path,strerror(errno));
+
+        return handle;
+}
+
+int Sys_FileWrite (int handle, void *src, int count)
+{
+        return write (handle, src, count);
+}
+
+void Sys_FileClose (int handle)
+{
+        close (handle);
+}
+
+void Sys_FileSeek (int handle, int position)
+{
+        lseek (handle, position, SEEK_SET);
+}
+
+int Sys_FileRead (int handle, void *dest, int count)
+{
+    return read (handle, dest, count);
+}
+
+void Sys_DebugLog(char *file, char *fmt, ...)
+{
+    va_list argptr; 
+    static char data[1024];
+    int fd;
+    
+    va_start(argptr, fmt);
+    vsprintf(data, fmt, argptr);
+    va_end(argptr);
+//    fd = open(file, O_WRONLY | O_BINARY | O_CREAT | O_APPEND, 0666);
+    fd = open(file, O_WRONLY | O_CREAT | O_APPEND, 0666);
+    write(fd, data, strlen(data));
+    close(fd);
+}
+
+void Sys_EditFile(char *filename)
+{
+
+        char cmd[256];
+        char *term;
+        char *editor;
+
+        term = getenv("TERM");
+        if (term && !strcmp(term, "xterm"))
+        {
+                editor = getenv("VISUAL");
+                if (!editor)
+                        editor = getenv("EDITOR");
+                if (!editor)
+                        editor = getenv("EDIT");
+                if (!editor)
+                        editor = "vi";
+                sprintf(cmd, "xterm -e %s %s", editor, filename);
+                system(cmd);
+        }
+
+}
+
+double Sys_FloatTime (void)
+{
+    struct timeval tp;
+    struct timezone tzp; 
+    static int      secbase; 
+    
+    gettimeofday(&tp, &tzp);  
+
+    if (!secbase)
+    {
+        secbase = tp.tv_sec;
+        return tp.tv_usec/1000000.0;
+    }
+
+    return (tp.tv_sec - secbase) + tp.tv_usec/1000000.0;
+}
+
+// =======================================================================
+// Sleeps for microseconds
+// =======================================================================
+
+static volatile int oktogo;
+
+void alarm_handler(int x)
+{
+        oktogo=1;
+}
+
+void Sys_LineRefresh(void)
+{
+}
+
+void floating_point_exception_handler(int whatever)
+{
+//      Sys_Warn("floating point exception\n");
+        signal(SIGFPE, floating_point_exception_handler);
+}
+
+char *Sys_ConsoleInput(void)
+{
+    static char text[256];
+    int     len;
+        fd_set  fdset;
+    struct timeval timeout;
+
+        if (cls.state == ca_dedicated) {
+                FD_ZERO(&fdset);
+                FD_SET(0, &fdset); // stdin
+                timeout.tv_sec = 0;
+                timeout.tv_usec = 0;
+                if (select (1, &fdset, NULL, NULL, &timeout) == -1 || !FD_ISSET(0, &fdset))
+                        return NULL;
+
+                len = read (0, text, sizeof(text));
+                if (len < 1)
+                        return NULL;
+                text[len-1] = 0;    // rip off the /n and terminate
+
+                return text;
+        }
+        return NULL;
+}
+
+#if !id386
+void Sys_HighFPPrecision (void)
+{
+}
+
+void Sys_LowFPPrecision (void)
+{
+}
+#endif
+
+int main (int c, char **v)
+{
+
+        double          time, oldtime, newtime;
+        quakeparms_t parms;
+        extern int vcrFile;
+        extern int recording;
+        int j;
+
+//      static char cwd[1024];
+
+//      signal(SIGFPE, floating_point_exception_handler);
+        signal(SIGFPE, SIG_IGN);
+
+        memset(&parms, 0, sizeof(parms));
+
+        COM_InitArgv(c, v);
+        parms.argc = com_argc;
+        parms.argv = com_argv;
+
+#ifdef GLQUAKE
+        parms.memsize = 16*1024*1024;
+#else
+        parms.memsize = 8*1024*1024;
+#endif
+
+        j = COM_CheckParm("-mem");
+        if (j)
+                parms.memsize = (int) (Q_atof(com_argv[j+1]) * 1024 * 1024);
+        parms.membase = malloc (parms.memsize);
+
+        parms.basedir = basedir;
+// caching is disabled by default, use -cachedir to enable
+//      parms.cachedir = cachedir;
+
+        fcntl(0, F_SETFL, fcntl (0, F_GETFL, 0) | FNDELAY);
+
+    Host_Init(&parms);
+
+        Sys_Init();
+
+        if (COM_CheckParm("-nostdout"))
+                nostdout = 1;
+        else {
+                fcntl(0, F_SETFL, fcntl (0, F_GETFL, 0) | FNDELAY);
+                printf ("Linux Quake -- Version %0.3f\n", LINUX_VERSION);
+        }
+
+    oldtime = Sys_FloatTime () - 0.1;
+    while (1)
+    {
+// find time spent rendering last frame
+        newtime = Sys_FloatTime ();
+        time = newtime - oldtime;
+
+        if (cls.state == ca_dedicated)
+        {   // play vcrfiles at max speed
+            if (time < sys_ticrate.value && (vcrFile == -1 || recording) )
+            {
+                                usleep(1);
+                continue;       // not time to run a server only tic yet
+            }
+            time = sys_ticrate.value;
+        }
+
+        if (time > sys_ticrate.value*2)
+            oldtime = newtime;
+        else
+            oldtime += time;
+
+        Host_Frame (time);
+
+// graphic debugging aids
+        if (sys_linerefresh.value)
+            Sys_LineRefresh ();
+    }
+
+}
+
+
+/*
+================
+Sys_MakeCodeWriteable
+================
+*/
+void Sys_MakeCodeWriteable (unsigned long startaddr, unsigned long length)
+{
+
+        int r;
+        unsigned long addr;
+        int psize = getpagesize();
+
+        addr = (startaddr & ~(psize-1)) - psize;
+
+//      fprintf(stderr, "writable code %lx(%lx)-%lx, length=%lx\n", startaddr,
+//                      addr, startaddr+length, length);
+
+        r = mprotect((char*)addr, length + startaddr - addr + psize, 7);
+
+        if (r < 0)
+                Sys_Error("Protection change failed\n");
+
+}
+