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                  int    nfds = 0;
  83                 FD_ZERO(&fds);
  84
  85                 WM_Update();
  86
  87                 Input_FillSelect(&nfds, &fds);
  88                 IPC_FillSelect(&nfds, &fds);
  89
  90                 nfds ++;
  91                 if( _SysSelect(nfds, &fds, NULL, NULL, NULL, THREAD_EVENT_IPCMSG) == -1 ) {
  92                         _SysDebug("ERROR: select() returned -1");
  93                         return -1;
  94                 }
  95
  96                 Input_HandleSelect(&fds);
  97                 IPC_HandleSelect(&fds);
  98         }
  99         return 0;
 100 }
 101
 102 void PrintUsage(void)
 103 {
 104         fprintf(stderr, "Arguments:\n");
 105         fprintf(stderr, "  --no-ui  : Don't spawn the UI process\n");
 106 }
 107
 108 void ParseCommandline(int argc, char **argv)
 109 {
 110         for( int i = 1; i < argc; i ++ )
 111         {
 112                 if( argv[i][0] != '-' ) {
 113                         // Error?
 114                         PrintUsage();
 115                         exit(-1);
 116                 }
 117                 else if( argv[i][1] != '-' ) {
 118                         // Short
 119                         PrintUsage();
 120                         exit(-1);
 121                 }
 122                 else {
 123                         // Long
 124                         if( strcmp(argv[i], "--no-ui") == 0 ) {
 125                                 gbNoSpawnUI = 1;
 126                         }
 127                         else {
 128                                 // Error.
 129                                 PrintUsage();
 130                                 exit(-1);
 131                         }
 132                 }
 133         }
 134 }
 135