initial commit-moved from vulkan_guide

third_party/SDL/src/main/windows/SDL_windows_main.c

@@ -0,0 +1,114 @@
+/*
+    SDL_windows_main.c, placed in the public domain by Sam Lantinga  4/13/98
+
+    The WinMain function -- calls your program's main() function
+*/
+#include "SDL_config.h"
+
+#ifdef __WIN32__
+
+/* Include this so we define UNICODE properly */
+#include "../../core/windows/SDL_windows.h"
+#include <shellapi.h> /* CommandLineToArgvW() */
+
+/* Include the SDL main definition header */
+#include "SDL.h"
+#include "SDL_main.h"
+
+#ifdef main
+#undef main
+#endif /* main */
+
+/* Pop up an out of memory message, returns to Windows */
+static BOOL OutOfMemory(void)
+{
+    SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Fatal Error", "Out of memory - aborting", NULL);
+    return FALSE;
+}
+
+#if defined(_MSC_VER)
+/* The VC++ compiler needs main/wmain defined */
+#define console_ansi_main main
+#if UNICODE
+#define console_wmain wmain
+#endif
+#endif
+
+/* Gets the arguments with GetCommandLine, converts them to argc and argv
+   and calls SDL_main */
+static int main_getcmdline(void)
+{
+    LPWSTR *argvw;
+    char **argv;
+    int i, argc, result;
+
+    argvw = CommandLineToArgvW(GetCommandLineW(), &argc);
+    if (argvw == NULL) {
+        return OutOfMemory();
+    }
+
+    /* Note that we need to be careful about how we allocate/free memory here.
+     * If the application calls SDL_SetMemoryFunctions(), we can't rely on
+     * SDL_free() to use the same allocator after SDL_main() returns.
+     */
+
+    /* Parse it into argv and argc */
+    argv = (char **)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (argc + 1) * sizeof(*argv));
+    if (argv == NULL) {
+        return OutOfMemory();
+    }
+    for (i = 0; i < argc; ++i) {
+        DWORD len;
+        char *arg = WIN_StringToUTF8W(argvw[i]);
+        if (arg == NULL) {
+            return OutOfMemory();
+        }
+        len = (DWORD)SDL_strlen(arg);
+        argv[i] = (char *)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (size_t)len + 1);
+        if (!argv[i]) {
+            return OutOfMemory();
+        }
+        SDL_memcpy(argv[i], arg, len);
+        SDL_free(arg);
+    }
+    argv[i] = NULL;
+    LocalFree(argvw);
+
+    SDL_SetMainReady();
+
+    /* Run the application main() code */
+    result = SDL_main(argc, argv);
+
+    /* Free argv, to avoid memory leak */
+    for (i = 0; i < argc; ++i) {
+        HeapFree(GetProcessHeap(), 0, argv[i]);
+    }
+    HeapFree(GetProcessHeap(), 0, argv);
+
+    return result;
+}
+
+/* This is where execution begins [console apps, ansi] */
+int console_ansi_main(int argc, char *argv[])
+{
+    return main_getcmdline();
+}
+
+#if UNICODE
+/* This is where execution begins [console apps, unicode] */
+int console_wmain(int argc, wchar_t *wargv[], wchar_t *wenvp)
+{
+    return main_getcmdline();
+}
+#endif
+
+/* This is where execution begins [windowed apps] */
+int WINAPI MINGW32_FORCEALIGN
+WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPSTR szCmdLine, int sw) /* NOLINT(readability-inconsistent-declaration-parameter-name) */
+{
+    return main_getcmdline();
+}
+
+#endif /* __WIN32__ */
+
+/* vi: set ts=4 sw=4 expandtab: */