Engine directory for ticket #1

Engine/source/main/main.cpp

@@ -0,0 +1,298 @@
+//-----------------------------------------------------------------------------
+// Copyright (c) 2012 GarageGames, LLC
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//-----------------------------------------------------------------------------
+
+#ifdef TORQUE_SHARED
+
+#ifdef WIN32
+
+#include <windows.h>
+#include <stdio.h>
+
+extern "C"
+{
+   int (*torque_winmain)( HINSTANCE hInstance, HINSTANCE h, LPSTR lpszCmdLine, int nShow) = NULL;
+};
+
+int PASCAL WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpszCmdLine, int nCommandShow)
+{
+   char filename[4096];
+   char gameLib[4096];
+
+   GetModuleFileNameA(NULL, filename, 4096);
+   filename[strlen(filename)-4] = 0;
+   sprintf(gameLib, "%s.dll", filename);
+
+   HMODULE hGame = LoadLibraryA(gameLib);
+
+   if (hGame)
+      torque_winmain = (int (*)(HINSTANCE hInstance, HINSTANCE h, LPSTR lpszCmdLine, int nShow))GetProcAddress(hGame, "torque_winmain");
+
+   char error[4096];
+   if (!hGame)
+   {
+      sprintf(error, "Unable to load game library: %s.  Please make sure it exists and the latest DirectX is installed.", gameLib);
+      MessageBoxA(NULL, error, "Error",  MB_OK|MB_ICONWARNING);
+      return -1;
+   }
+
+   if (!torque_winmain)
+   {
+      sprintf(error, "Missing torque_winmain export in game library: %s.  Please make sure that it exists and the latest DirectX is installed.", gameLib);
+      MessageBoxA(NULL, error, "Error",  MB_OK|MB_ICONWARNING);
+      return -1;
+   }
+
+   int ret = torque_winmain(hInstance, hPrevInstance, lpszCmdLine, nCommandShow );
+
+   FreeLibrary(hGame);
+
+   return ret;
+
+}
+#endif // WIN32
+
+
+#ifdef __MACOSX__
+
+#include <dlfcn.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <Carbon/Carbon.h>
+
+extern "C" {
+
+   int (*torque_macmain)(int argc, const char **argv) = 0;
+
+}
+
+void GetBasePath(const char** cpath, const char** cname)
+{
+   static char path[2049];
+   static char name[2049];
+
+   ProcessSerialNumber PSN;
+   ProcessInfoRec pinfo;
+   FSSpec pspec;
+   FSRef fsr;
+   OSStatus err;
+
+   path[0] = 0;
+   name[0] = 0;
+
+   *cpath = path;
+   *cname = name;
+
+   // set up process serial number
+   PSN.highLongOfPSN = 0;
+   PSN.lowLongOfPSN = kCurrentProcess;
+
+   // set up info block
+   pinfo.processInfoLength = sizeof(pinfo);
+   pinfo.processName = NULL;
+   pinfo.processAppSpec = &pspec;
+
+   // grab the vrefnum and directory
+   err = GetProcessInformation(&PSN, &pinfo);
+   if (! err ) {
+
+      FSSpec fss2;
+
+      strcpy(name, &pspec.name[1]);
+
+      err = FSMakeFSSpec(pspec.vRefNum, pspec.parID, 0, &fss2);
+
+      if ( ! err ) {
+         err = FSpMakeFSRef(&fss2, &fsr);
+         if ( ! err ) {
+            err = (OSErr)FSRefMakePath(&fsr, (UInt8*)path, 2048);
+         }
+      }
+   }
+}
+
+int main(int argc, const char **argv)
+{
+   void *gameBundle = 0;
+   char gameBundleFilename[2049];
+
+   const char* basePath;
+   const char* appName;
+
+   // Get the path to our app binary and the app name
+
+   GetBasePath(&basePath, &appName);
+
+   if (!basePath[0] || !appName[0])
+      return;
+
+   char appNameNoDebug[2049];
+
+   strcpy(appNameNoDebug, appName);
+
+   int i = strlen(appName);
+   while (i > 0)
+   {
+      if (!strcmp(&appName[i], "_DEBUG"))
+      {
+         appNameNoDebug[i] = 0;
+         break;
+      }
+
+      i--;
+   }
+
+   sprintf(gameBundleFilename, "%s.app/Contents/Frameworks/%s Bundle.bundle/Contents/MacOS/%s Bundle", appName, appNameNoDebug, appNameNoDebug);
+
+   // first see if the current directory is set properly
+   gameBundle = dlopen(gameBundleFilename, RTLD_LAZY | RTLD_LOCAL);
+
+   if (!gameBundle)
+   {
+      // Couldn't load the game bundle... so, using the path to the bundle binary fix up the cwd
+
+      if (basePath[0]) {
+         chdir( basePath );
+         chdir( "../../../" );
+      }
+
+      // and try again
+      gameBundle = dlopen( gameBundleFilename, RTLD_LAZY | RTLD_LOCAL);
+   }
+
+   if (!gameBundle)
+      return -1;
+
+   torque_macmain = (int (*)(int argc, const char **argv)) dlsym(gameBundle, "torque_macmain");
+
+   if (!torque_macmain)
+      return -1;
+
+   return torque_macmain(argc, argv);
+}
+
+#endif // __MACOSX
+
+#ifdef __linux__
+
+#include <dlfcn.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+
+extern "C"
+{
+   int (*torque_unixmain)(int argc, const char **argv) = NULL;
+   void(*setExePathName)(const char *exePathName) = NULL;
+}
+
+int main(int argc, const char **argv)
+{
+   // assume bin name is in argv[0]
+   int len = strlen(argv[0]);
+   char *libName = new char[len+4]; // len + .so + NUL
+
+   strcpy(libName, argv[0]);
+   strcat(libName, ".so");
+
+   // try to load the game lib
+   void *gameLib = dlopen(libName, RTLD_LAZY | RTLD_LOCAL);
+   delete [] libName;
+
+   if(gameLib == NULL)
+   {
+      printf("%s\n", dlerror());
+      return -1;
+   }
+
+   // set the filename of the exe image
+   setExePathName = (void(*)(const char *)) dlsym(gameLib, "setExePathName");
+   if(setExePathName == NULL)
+   {
+      printf("%s\n", dlerror());
+      return -1;
+   }
+   setExePathName(argv[0]);
+
+   // try to load the lib entry point
+   torque_unixmain = (int(*)(int argc, const char **argv)) dlsym(gameLib, "torque_unixmain");
+
+   if(torque_unixmain == NULL)
+   {
+      printf("%s\n", dlerror());
+      return -1;
+   }
+
+   // Go!
+   return torque_unixmain(argc, argv);
+}
+#endif // __linux__
+
+
+#else //static exe build
+
+#include "platform/platform.h"
+#include "app/mainLoop.h"
+#include "T3D/gameFunctions.h"
+
+// Entry point for your game.
+//
+// This is build by default using the "StandardMainLoop" toolkit. Feel free
+// to bring code over directly as you need to modify or extend things. You
+// will need to merge against future changes to the SML code if you do this.
+S32 TorqueMain(S32 argc, const char **argv)
+{
+   // Some handy debugging code:
+   //   if (argc == 1) {
+   //      static const char* argvFake[] = { "dtest.exe", "-jload", "test.jrn" };
+   //      argc = 3;
+   //      argv = argvFake;
+   //   }
+
+   //   Memory::enableLogging("testMem.log");
+   //   Memory::setBreakAlloc(104717);
+
+   // Initialize the subsystems.
+   StandardMainLoop::init();
+
+   // Handle any command line args.
+   if(!StandardMainLoop::handleCommandLine(argc, argv))
+   {
+      Platform::AlertOK("Error", "Failed to initialize game, shutting down.");
+
+      return 1;
+   }
+
+   // Main loop
+   while(StandardMainLoop::doMainLoop());
+
+   // Clean everything up.
+   StandardMainLoop::shutdown();
+
+   // Do we need to restart?
+   if( StandardMainLoop::requiresRestart() )
+      Platform::restartInstance();
+
+   // Return.
+   return 0;
+}
+
+#endif //TORQUE_SHARED