add SDL2 sources

thirdparty/SDL2-src/src/main/windows/SDL_windows_main.c

@@ -0,0 +1,108 @@
+/*
+    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 */
+
+#define WIN_WStringToUTF8(S) SDL_iconv_string("UTF-8", "UTF-16LE", (char *)(S), (SDL_wcslen(S)+1)*sizeof(WCHAR))
+
+/* 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();
+    }
+
+    /* Parse it into argv and argc */
+    argv = (char **)SDL_calloc(argc + 1, sizeof(*argv));
+    if (!argv) {
+        return OutOfMemory();
+    }
+    for (i = 0; i < argc; ++i) {
+        argv[i] = WIN_WStringToUTF8(argvw[i]);
+        if (!argv[i]) {
+            return OutOfMemory();
+        }
+    }
+    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) {
+        SDL_free(argv[i]);
+    }
+    SDL_free(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
+WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPSTR szCmdLine, int sw)
+{
+    return main_getcmdline();
+}
+
+#endif /* __WIN32__ */
+
+/* vi: set ts=4 sw=4 expandtab: */

thirdparty/SDL2-src/src/main/windows/version.rc

@@ -0,0 +1,38 @@
+
+#include "winresrc.h"
+
+LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// Version
+//
+
+VS_VERSION_INFO VERSIONINFO
+ FILEVERSION 2,0,12,0
+ PRODUCTVERSION 2,0,12,0
+ FILEFLAGSMASK 0x3fL
+ FILEFLAGS 0x0L
+ FILEOS 0x40004L
+ FILETYPE 0x2L
+ FILESUBTYPE 0x0L
+BEGIN
+    BLOCK "StringFileInfo"
+    BEGIN
+        BLOCK "040904b0"
+        BEGIN
+            VALUE "CompanyName", "\0"
+            VALUE "FileDescription", "SDL\0"
+            VALUE "FileVersion", "2, 0, 12, 0\0"
+            VALUE "InternalName", "SDL\0"
+            VALUE "LegalCopyright", "Copyright © 2020 Sam Lantinga\0"
+            VALUE "OriginalFilename", "SDL2.dll\0"
+            VALUE "ProductName", "Simple DirectMedia Layer\0"
+            VALUE "ProductVersion", "2, 0, 12, 0\0"
+        END
+    END
+    BLOCK "VarFileInfo"
+    BEGIN
+        VALUE "Translation", 0x409, 1200
+    END
+END