[Scummvm-cvs-logs] SF.net SVN: scummvm: [29305] scummvm/trunk/backends/platform/wince/stub.cpp

[knakos at users.sourceforge.net]

Revision: 29305
          http://scummvm.svn.sourceforge.net/scummvm/?rev=29305&view=rev
Author:   knakos
Date:     2007-10-28 11:40:03 -0700 (Sun, 28 Oct 2007)

Log Message:
-----------
entry point for plugin builds

Added Paths:
-----------
    scummvm/trunk/backends/platform/wince/stub.cpp

Added: scummvm/trunk/backends/platform/wince/stub.cpp
===================================================================
--- scummvm/trunk/backends/platform/wince/stub.cpp	                        (rev 0)
+++ scummvm/trunk/backends/platform/wince/stub.cpp	2007-10-28 18:40:03 UTC (rev 29305)
@@ -0,0 +1,58 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#include <windows.h>
+
+extern int dynamic_modules_main(HINSTANCE hInst, HINSTANCE hPrev, LPWSTR szCmdLine, int sw);
+
+int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPWSTR szCmdLine, int sw) {
+
+	/* Hello!
+	 * This thing looks trivial, right? Guess again :-)
+	 * Observe:
+	 * 1) Because of the way plugins are done within the scummvm core
+	 *    (read: slightly dirty) it is required that the plugins
+	 *    (built as dlls in win32 systems) have to "backlink" into the
+	 *    main executable. More specifically, the dlls have to call
+	 *    functions from the (separately built) main module.
+	 *    This means trouble for wince, as the dynamic linker does not
+	 *    resolve imported symbols to a dll from an executable.
+	 * 2) But wait! DLLs can have any way of importing/exporting symbols
+	 *    between them. Hmmm...
+	 * 
+	 * Right! The solution is thus: We build everything as a dll. This means
+	 * the individual engines (plugins) and also the scummvm core application.
+	 * It is in fact "The sub-DLL solution" described over at edll
+	 * (ref. http://edll.sourceforge.net/).
+	 *
+	 * The last thing to watch out for is that in a plugin build, we already
+	 * supply a WinMain function (this one, right here) which supersedes
+	 * SDL's one. So we need to do the startup things SDL does in scummvm
+	 * before running SDL_main.
+	 *
+	 * All this leaves us, for this source file, to do this crummy little... */
+
+	dynamic_modules_main(hInst, hPrev, szCmdLine, sw);
+}


Property changes on: scummvm/trunk/backends/platform/wince/stub.cpp
___________________________________________________________________
Name: svn:mime-type
   + text/plain
Name: svn:keywords
   + Date Rev Author URL Id
Name: svn:eol-style
   + native


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