sys_sdl.c

   1
   2 #ifdef WIN32
   3 #ifdef _MSC_VER
   4 #pragma comment(lib, "sdl.lib")
   5 #pragma comment(lib, "sdlmain.lib")
   6 #endif
   7 #include <io.h>
   8 #include "conio.h"
   9 #else
  10 #include <unistd.h>
  11 #include <fcntl.h>
  12 #include <sys/time.h>
  13 #endif
  14
  15 #include <signal.h>
  16
  17 #include <SDL.h>
  18
  19 #include "quakedef.h"
  20
  21 // =======================================================================
  22 // General routines
  23 // =======================================================================
  24
  25 void Sys_Shutdown (void)
  26 {
  27 #ifndef WIN32
  28         fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~FNDELAY);
  29 #endif
  30         fflush(stdout);
  31         SDL_Quit();
  32 }
  33
  34
  35 void Sys_Error (const char *error, ...)
  36 {
  37         va_list argptr;
  38         char string[MAX_INPUTLINE];
  39
  40 // change stdin to non blocking
  41 #ifndef WIN32
  42         fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~FNDELAY);
  43 #endif
  44
  45         va_start (argptr,error);
  46         dpvsnprintf (string, sizeof (string), error, argptr);
  47         va_end (argptr);
  48
  49         Con_Printf ("Quake Error: %s\n", string);
  50
  51         Host_Shutdown ();
  52         exit (1);
  53 }
  54
  55 static int outfd = 1;
  56 void Sys_PrintToTerminal(const char *text)
  57 {
  58         if(outfd < 0)
  59                 return;
  60 #ifdef FNDELAY
  61         // BUG: for some reason, NDELAY also affects stdout (1) when used on stdin (0).
  62         // this is because both go to /dev/tty by default!
  63         {
  64                 int origflags = fcntl (outfd, F_GETFL, 0);
  65                 fcntl (outfd, F_SETFL, origflags & ~FNDELAY);
  66 #endif
  67 #ifdef WIN32
  68 #define write _write
  69 #endif
  70                 while(*text)
  71                 {
  72                         fs_offset_t written = (fs_offset_t)write(outfd, text, strlen(text));
  73                         if(written <= 0)
  74                                 break; // sorry, I cannot do anything about this error - without an output
  75                         text += written;
  76                 }
  77 #ifdef FNDELAY
  78                 fcntl (outfd, F_SETFL, origflags);
  79         }
  80 #endif
  81         //fprintf(stdout, "%s", text);
  82 }
  83
  84 char *Sys_ConsoleInput(void)
  85 {
  86         if (cls.state == ca_dedicated)
  87         {
  88                 static char text[MAX_INPUTLINE];
  89                 int len = 0;
  90 #ifdef WIN32
  91                 int c;
  92
  93                 // read a line out
  94                 while (_kbhit ())
  95                 {
  96                         c = _getch ();
  97                         _putch (c);
  98                         if (c == '\r')
  99                         {
 100                                 text[len] = 0;
 101                                 _putch ('\n');
 102                                 len = 0;
 103                                 return text;
 104                         }
 105                         if (c == 8)
 106                         {
 107                                 if (len)
 108                                 {
 109                                         _putch (' ');
 110                                         _putch (c);
 111                                         len--;
 112                                         text[len] = 0;
 113                                 }
 114                                 continue;
 115                         }
 116                         text[len] = c;
 117                         len++;
 118                         text[len] = 0;
 119                         if (len == sizeof (text))
 120                                 len = 0;
 121                 }
 122 #else
 123                 fd_set fdset;
 124                 struct timeval timeout;
 125                 FD_ZERO(&fdset);
 126                 FD_SET(0, &fdset); // stdin
 127                 timeout.tv_sec = 0;
 128                 timeout.tv_usec = 0;
 129                 if (select (1, &fdset, NULL, NULL, &timeout) != -1 && FD_ISSET(0, &fdset))
 130                 {
 131                         len = read (0, text, sizeof(text));
 132                         if (len >= 1)
 133                         {
 134                                 // rip off the \n and terminate
 135                                 text[len-1] = 0;
 136                                 return text;
 137                         }
 138                 }
 139 #endif
 140         }
 141         return NULL;
 142 }
 143
 144 char *Sys_GetClipboardData (void)
 145 {
 146 #ifdef WIN32
 147         char *data = NULL;
 148         char *cliptext;
 149
 150         if (OpenClipboard (NULL) != 0)
 151         {
 152                 HANDLE hClipboardData;
 153
 154                 if ((hClipboardData = GetClipboardData (CF_TEXT)) != 0)
 155                 {
 156                         if ((cliptext = (char *)GlobalLock (hClipboardData)) != 0)
 157                         {
 158                                 size_t allocsize;
 159                                 allocsize = GlobalSize (hClipboardData) + 1;
 160                                 data = (char *)Z_Malloc (allocsize);
 161                                 strlcpy (data, cliptext, allocsize);
 162                                 GlobalUnlock (hClipboardData);
 163                         }
 164                 }
 165                 CloseClipboard ();
 166         }
 167         return data;
 168 #else
 169         return NULL;
 170 #endif
 171 }
 172
 173 void Sys_InitConsole (void)
 174 {
 175 }
 176
 177 int main (int argc, char *argv[])
 178 {
 179         signal(SIGFPE, SIG_IGN);
 180
 181         com_argc = argc;
 182         com_argv = (const char **)argv;
 183         Sys_ProvideSelfFD();
 184
 185         // COMMANDLINEOPTION: sdl: -noterminal disables console output on stdout
 186         if(COM_CheckParm("-noterminal"))
 187                 outfd = -1;
 188         // COMMANDLINEOPTION: sdl: -stderr moves console output to stderr
 189         else if(COM_CheckParm("-stderr"))
 190                 outfd = 2;
 191         else
 192                 outfd = 1;
 193
 194 #ifndef WIN32
 195         fcntl(0, F_SETFL, fcntl (0, F_GETFL, 0) | FNDELAY);
 196 #endif
 197
 198         // we don't know which systems we'll want to init, yet...
 199         SDL_Init(0);
 200
 201         Host_Main();
 202
 203         return 0;
 204 }
 205
 206 qboolean sys_supportsdlgetticks = true;
 207 unsigned int Sys_SDL_GetTicks (void)
 208 {
 209         return SDL_GetTicks();
 210 }
 211 void Sys_SDL_Delay (unsigned int milliseconds)
 212 {
 213         SDL_Delay(milliseconds);
 214 }