restructured repository based on following standards:

https://github.com/HW-Core/directory-structure

modules/dep/g3dlite/source/WinMain.cpp

@@ -0,0 +1,159 @@
+/*
+    Dervied from SDL_main.c, which was placed in the public domain by Sam Lantinga  4/13/98
+
+    The WinMain function -- calls your program's main() function
+*/
+
+#include "G3D/platform.h"
+
+#ifdef G3D_WIN32
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <cctype>
+
+#ifdef main
+#   ifndef _WIN32_WCE_EMULATION
+#       undef main
+#   endif /* _WIN32_WCE_EMULATION */
+#endif /* main */
+
+#if defined(_WIN32_WCE) && _WIN32_WCE < 300
+/* seems to be undefined in Win CE although in online help */
+#define isspace(a) (((CHAR)a == ' ') || ((CHAR)a == '\t'))
+#endif /* _WIN32_WCE < 300 */
+
+// Turn off the G3D for loop scoping for C++
+#ifdef for
+#  undef for
+#endif
+
+extern int main(int argc, const char** argv);
+
+/* Parse a command line buffer into arguments */
+static int ParseCommandLine(char *cmdline, char **argv) {
+    char *bufp;
+    int argc;
+
+    argc = 0;
+    for (bufp = cmdline; *bufp;) {
+        /* Skip leading whitespace */
+        while (isspace(*bufp)) {
+            ++bufp;
+        }
+        /* Skip over argument */
+        if (*bufp == '"') {
+            ++bufp;
+            if (*bufp) {
+                if (argv) {
+                    argv[argc] = bufp;
+                }
+                ++argc;
+            }
+            /* Skip over word */
+            while (*bufp && (*bufp != '"')) {
+                ++bufp;
+            }
+        } else {
+            if (*bufp) {
+                if (argv) {
+                    argv[argc] = bufp;
+                }
+                ++argc;
+            }
+            /* Skip over word */
+            while (*bufp && !isspace(*bufp)) {
+                ++bufp;
+            }
+        }
+        if (*bufp) {
+            if (argv) {
+                *bufp = '\0';
+            }
+            ++bufp;
+        }
+    }
+    if (argv) {
+        argv[argc] = NULL;
+    }
+    return (argc);
+}
+
+/* Show an error message */
+static void ShowError(const char *title, const char *message) {
+/* If USE_MESSAGEBOX is defined, you need to link with user32.lib */
+#ifdef USE_MESSAGEBOX
+    MessageBox(NULL, message, title, MB_ICONEXCLAMATION | MB_OK);
+#else
+    fprintf(stderr, "%s: %s\n", title, message);
+#endif
+}
+
+/* Pop up an out of memory message, returns to Windows */
+static BOOL OutOfMemory(void) {
+    ShowError("Fatal Error", "Out of memory - aborting");
+    return FALSE;
+}
+
+
+int WINAPI G3D_WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPSTR szCmdLine, int sw) {
+    char **argv;
+    int argc;
+    int status;
+    char *cmdline;
+#   ifdef _WIN32_WCE
+        wchar_t *bufp;
+        int nLen;
+#   else
+        char *bufp;
+        size_t nLen;
+#   endif
+    (void)sw;
+    (void)szCmdLine;
+    (void)hInst;
+    (void)hPrev;
+
+#ifdef _WIN32_WCE
+#error WinCE not supported
+    /*
+    nLen = wcslen(szCmdLine) + 128 + 1;
+    bufp = SDL_stack_alloc(wchar_t, nLen * 2);
+    wcscpy(bufp, TEXT("\""));
+    GetModuleFileName(NULL, bufp + 1, 128 - 3);
+    wcscpy(bufp + wcslen(bufp), TEXT("\" "));
+    wcsncpy(bufp + wcslen(bufp), szCmdLine, nLen - wcslen(bufp));
+    nLen = wcslen(bufp) + 1;
+    cmdline = SDL_stack_alloc(char, nLen);
+    if (cmdline == NULL) {
+        return OutOfMemory();
+    }
+    WideCharToMultiByte(CP_ACP, 0, bufp, -1, cmdline, nLen, NULL, NULL);
+    */
+#else
+    /* Grab the command line */
+    bufp = GetCommandLineA();
+    nLen = strlen(bufp) + 1;
+    cmdline = (char*)malloc(sizeof(char) * nLen);
+    if (cmdline == NULL) {
+        return OutOfMemory();
+    }
+    strncpy(cmdline, bufp, nLen);
+#endif
+
+    /* Parse it into argv and argc */
+    argc = ParseCommandLine(cmdline, NULL);
+    argv = (char**)malloc(sizeof(char*) * (argc + 1));
+    if (argv == NULL) {
+        return OutOfMemory();
+    }
+    ParseCommandLine(cmdline, argv);
+
+    /* Run the main program */
+    status = main(argc, (const char**)argv);
+    free(argv);
+    free(cmdline);
+
+    return status;
+}
+
+#endif // if Win32