Usermode/Applications/axwin3_src/WM/main.c

   1 /*
   2  * Acess2 GUI (AxWin) Version 3
   3  * - By John Hodge (thePowersGang)
   4  *
   5  * main.c
   6  * - Entrypoint
   7  */
   8 #include <common.h>
   9 #include <acess/sys.h>
  10 #include <stdlib.h>
  11 #include <stdio.h>
  12 #include <string.h>
  13 #include "include/lowlevel.h"
  14
  15 // === IMPORTS ===
  16 extern void     Video_Setup(void);
  17 extern void     WM_Initialise(void);
  18 extern void     WM_Update(void);
  19
  20 // === PROTOTYPES ===
  21 void    ParseCommandline(int argc, char **argv);
  22
  23 // === GLOBALS ===
  24 const char      *gsTerminalDevice = NULL;
  25 const char      *gsMouseDevice = NULL;
  26
  27  int    giScreenWidth = 640;
  28  int    giScreenHeight = 480;
  29
  30  int    giTerminalFD = -1;
  31  int    giTerminalFD_Input = 0;
  32  int    giMouseFD = -1;
  33
  34 #define __INSTALL_ROOT  "/Acess/Apps/AxWin/3.0"
  35
  36 const char      *gsInstallRoot = __INSTALL_ROOT;
  37 const char      *gsInterfaceApp = __INSTALL_ROOT"/AxWinUI";
  38  int    gbNoSpawnUI = 0;
  39
  40 // === CODE ===
  41 /**
  42  * \brief Program Entrypoint
  43  */
  44 int main(int argc, char *argv[])
  45 {
  46         ParseCommandline(argc, argv);
  47
  48         if( gsTerminalDevice == NULL ) {
  49                 gsTerminalDevice = "/Devices/VTerm/6";
  50         }
  51         if( gsMouseDevice == NULL ) {
  52                 gsMouseDevice = "/Devices/Mouse/system";
  53         }
  54
  55         Video_Setup();
  56         IPC_Init();
  57         Input_Init();
  58
  59         WM_Initialise();
  60
  61         // Spawn interface root
  62         if( !gbNoSpawnUI )
  63         {
  64                 int     server_tid = gettid();
  65                 _SysDebug("server_tid = %i", server_tid);
  66                 char    server_info[] = "AXWIN3_SERVER=00000";
  67                 const char      *envp[] = {server_info, NULL};
  68                 const char      *argv[] = {gsInterfaceApp, NULL};
  69                 _SysDebug("server_tid = %i, &server_tid = %p", server_tid, &server_tid);
  70                 sprintf(server_info, "AXWIN3_SERVER=%i", server_tid);
  71                 // TODO: Does the client need FDs?
  72                  int    rv = _SysSpawn(gsInterfaceApp, argv, envp, 0, NULL, NULL);
  73                 if( rv < 0 ) {
  74                         _SysDebug("_SysSpawn chucked a sad, rv=%i, errno=%i", rv, _errno);
  75                 }
  76         }
  77
  78         // Main Loop
  79         for(;;)
  80         {
  81                 fd_set  fds;
  82                 fd_set  efds;
  83                  int    nfds = 0;
  84                 FD_ZERO(&fds);
  85                 FD_ZERO(&efds);
  86
  87                 WM_Update();
  88
  89                 Input_FillSelect(&nfds, &fds);
  90                 IPC_FillSelect(&nfds, &fds, &efds);
  91
  92                 nfds ++;
  93                 if( _SysSelect(nfds, &fds, NULL, &efds, NULL, THREAD_EVENT_IPCMSG) == -1 ) {
  94                         _SysDebug("ERROR: select() returned -1");
  95                         return -1;
  96                 }
  97
  98                 Input_HandleSelect(&fds);
  99                 IPC_HandleSelect(&fds, &efds);
 100         }
 101         return 0;
 102 }
 103
 104 void PrintUsage(void)
 105 {
 106         fprintf(stderr, "Arguments:\n");
 107         fprintf(stderr, "  --no-ui  : Don't spawn the UI process\n");
 108 }
 109
 110 void ParseCommandline(int argc, char **argv)
 111 {
 112         for( int i = 1; i < argc; i ++ )
 113         {
 114                 if( argv[i][0] != '-' ) {
 115                         // Error?
 116                         PrintUsage();
 117                         exit(-1);
 118                 }
 119                 else if( argv[i][1] != '-' ) {
 120                         // Short
 121                         PrintUsage();
 122                         exit(-1);
 123                 }
 124                 else {
 125                         // Long
 126                         if( strcmp(argv[i], "--no-ui") == 0 ) {
 127                                 gbNoSpawnUI = 1;
 128                         }
 129                         else {
 130                                 // Error.
 131                                 PrintUsage();
 132                                 exit(-1);
 133                         }
 134                 }
 135         }
 136 }
 137