sys_sdl.c

   1 #include "quakedef.h"
   2
   3 #ifdef WIN32
   4 #include <io.h>
   5 #include "conio.h"
   6 #else
   7 #include <unistd.h>
   8 #include <fcntl.h>
   9 #include <sys/time.h>
  10 #endif
  11
  12 #include <signal.h>
  13
  14 #include <SDL.h>
  15
  16 // =======================================================================
  17 // General routines
  18 // =======================================================================
  19
  20 void Sys_Shutdown (void)
  21 {
  22 #ifndef WIN32
  23         fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~FNDELAY);
  24 #endif
  25         fflush(stdout);
  26         SDL_Quit();
  27 }
  28
  29
  30 void Sys_Error (const char *error, ...)
  31 {
  32         va_list argptr;
  33         char string[MAX_INPUTLINE];
  34
  35 // change stdin to non blocking
  36 #ifndef WIN32
  37         fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~FNDELAY);
  38 #endif
  39
  40         va_start (argptr,error);
  41         dpvsnprintf (string, sizeof (string), error, argptr);
  42         va_end (argptr);
  43
  44         Con_Printf ("Quake Error: %s\n", string);
  45
  46         Host_Shutdown ();
  47         exit (1);
  48 }
  49
  50 void Sys_PrintToTerminal(const char *text)
  51 {
  52 #ifndef WIN32
  53         // BUG: for some reason, NDELAY also affects stdout (1) when used on stdin (0).
  54         int origflags = fcntl (1, F_GETFL, 0);
  55         fcntl (1, F_SETFL, origflags & ~FNDELAY);
  56 #else
  57 #define write _write
  58 #endif
  59         while(*text)
  60         {
  61                 int written = (int)write(1, text, (int)strlen(text));
  62                 if(written <= 0)
  63                         break; // sorry, I cannot do anything about this error - without an output
  64                 text += written;
  65         }
  66 #ifndef WIN32
  67         fcntl (1, F_SETFL, origflags);
  68 #endif
  69         //fprintf(stdout, "%s", text);
  70 }
  71
  72 char *Sys_ConsoleInput(void)
  73 {
  74         if (cls.state == ca_dedicated)
  75         {
  76                 static char text[MAX_INPUTLINE];
  77                 int len = 0;
  78 #ifdef WIN32
  79                 int c;
  80
  81                 // read a line out
  82                 while (_kbhit ())
  83                 {
  84                         c = _getch ();
  85                         _putch (c);
  86                         if (c == '\r')
  87                         {
  88                                 text[len] = 0;
  89                                 _putch ('\n');
  90                                 len = 0;
  91                                 return text;
  92                         }
  93                         if (c == 8)
  94                         {
  95                                 if (len)
  96                                 {
  97                                         _putch (' ');
  98                                         _putch (c);
  99                                         len--;
 100                                         text[len] = 0;
 101                                 }
 102                                 continue;
 103                         }
 104                         text[len] = c;
 105                         len++;
 106                         text[len] = 0;
 107                         if (len == sizeof (text))
 108                                 len = 0;
 109                 }
 110 #else
 111                 fd_set fdset;
 112                 struct timeval timeout;
 113                 FD_ZERO(&fdset);
 114                 FD_SET(0, &fdset); // stdin
 115                 timeout.tv_sec = 0;
 116                 timeout.tv_usec = 0;
 117                 if (select (1, &fdset, NULL, NULL, &timeout) != -1 && FD_ISSET(0, &fdset))
 118                 {
 119                         len = read (0, text, sizeof(text));
 120                         if (len >= 1)
 121                         {
 122                                 // rip off the \n and terminate
 123                                 text[len-1] = 0;
 124                                 return text;
 125                         }
 126                 }
 127 #endif
 128         }
 129         return NULL;
 130 }
 131
 132 char *Sys_GetClipboardData (void)
 133 {
 134 #ifdef WIN32
 135         char *data = NULL;
 136         char *cliptext;
 137
 138         if (OpenClipboard (NULL) != 0)
 139         {
 140                 HANDLE hClipboardData;
 141
 142                 if ((hClipboardData = GetClipboardData (CF_TEXT)) != 0)
 143                 {
 144                         if ((cliptext = (char *)GlobalLock (hClipboardData)) != 0)
 145                         {
 146                                 size_t allocsize;
 147                                 allocsize = GlobalSize (hClipboardData) + 1;
 148                                 data = (char *)Z_Malloc (allocsize);
 149                                 strlcpy (data, cliptext, allocsize);
 150                                 GlobalUnlock (hClipboardData);
 151                         }
 152                 }
 153                 CloseClipboard ();
 154         }
 155         return data;
 156 #else
 157         return NULL;
 158 #endif
 159 }
 160
 161 void Sys_InitConsole (void)
 162 {
 163 }
 164
 165 int main (int argc, char *argv[])
 166 {
 167         signal(SIGFPE, SIG_IGN);
 168
 169         com_argc = argc;
 170         com_argv = (const char **)argv;
 171
 172 #ifndef WIN32
 173         fcntl(0, F_SETFL, fcntl (0, F_GETFL, 0) | FNDELAY);
 174 #endif
 175
 176         // we don't know which systems we'll want to init, yet...
 177         SDL_Init(0);
 178
 179         Host_Main();
 180
 181         return 0;
 182 }
 183
 184 qboolean sys_supportsdlgetticks = true;
 185 unsigned int Sys_SDL_GetTicks (void)
 186 {
 187         return SDL_GetTicks();
 188 }
 189 void Sys_SDL_Delay (unsigned int milliseconds)
 190 {
 191         SDL_Delay(milliseconds);
 192 }