Fixes #2022, do not resume on Android when surfaceChanged

If the app is in landscape mode and the user presses the power button, a pause
is followed immediately by a surfaceChanged event because the lock screen
is shown in portrait mode. This triggers a "false" resume.
So, we just pause and resume following the onWindowFocusChanged events.

Also, wait for SDL_APP_WILLENTERBACKGROUND and SDL_APP_DIDENTERBACKGROUND before
blocking the event pump.

src/main/windows/SDL_windows_main.c

@@ -0,0 +1,189 @@
+/*
+    SDL_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 <stdio.h>
+#include <stdlib.h>
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
+/* Include the SDL main definition header */
+#include "SDL.h"
+#include "SDL_main.h"
+
+#ifdef main
+#  undef main
+#endif /* main */
+
+static void
+UnEscapeQuotes(char *arg)
+{
+    char *last = NULL;
+
+    while (*arg) {
+        if (*arg == '"' && (last != NULL && *last == '\\')) {
+            char *c_curr = arg;
+            char *c_last = last;
+
+            while (*c_curr) {
+                *c_last = *c_curr;
+                c_last = c_curr;
+                c_curr++;
+            }
+            *c_last = '\0';
+        }
+        last = arg;
+        arg++;
+    }
+}
+
+/* Parse a command line buffer into arguments */
+static int
+ParseCommandLine(char *cmdline, char **argv)
+{
+    char *bufp;
+    char *lastp = NULL;
+    int argc, last_argc;
+
+    argc = last_argc = 0;
+    for (bufp = cmdline; *bufp;) {
+        /* Skip leading whitespace */
+        while (SDL_isspace(*bufp)) {
+            ++bufp;
+        }
+        /* Skip over argument */
+        if (*bufp == '"') {
+            ++bufp;
+            if (*bufp) {
+                if (argv) {
+                    argv[argc] = bufp;
+                }
+                ++argc;
+            }
+            /* Skip over word */
+            lastp = bufp;
+            while (*bufp && (*bufp != '"' || *lastp == '\\')) {
+                lastp = bufp;
+                ++bufp;
+            }
+        } else {
+            if (*bufp) {
+                if (argv) {
+                    argv[argc] = bufp;
+                }
+                ++argc;
+            }
+            /* Skip over word */
+            while (*bufp && !SDL_isspace(*bufp)) {
+                ++bufp;
+            }
+        }
+        if (*bufp) {
+            if (argv) {
+                *bufp = '\0';
+            }
+            ++bufp;
+        }
+
+        /* Strip out \ from \" sequences */
+        if (argv && last_argc != argc) {
+            UnEscapeQuotes(argv[last_argc]);
+        }
+        last_argc = argc;
+    }
+    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;
+}
+
+#if defined(_MSC_VER)
+/* The VC++ compiler needs main defined */
+#define console_main main
+#endif
+
+/* This is where execution begins [console apps] */
+int
+console_main(int argc, char *argv[])
+{
+    int status;
+
+    SDL_SetMainReady();
+
+    /* Run the application main() code */
+    status = SDL_main(argc, argv);
+
+    /* Exit cleanly, calling atexit() functions */
+    exit(status);
+
+    /* Hush little compiler, don't you cry... */
+    return 0;
+}
+
+/* This is where execution begins [windowed apps] */
+int WINAPI
+WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPSTR szCmdLine, int sw)
+{
+    char **argv;
+    int argc;
+    char *cmdline;
+
+    /* Grab the command line */
+    TCHAR *text = GetCommandLine();
+#if UNICODE
+    cmdline = SDL_iconv_string("UTF-8", "UCS-2-INTERNAL", (char *)(text), (SDL_wcslen(text)+1)*sizeof(WCHAR));
+#else
+    cmdline = SDL_strdup(text);
+#endif
+    if (cmdline == NULL) {
+        return OutOfMemory();
+    }
+
+    /* Parse it into argv and argc */
+    argc = ParseCommandLine(cmdline, NULL);
+    argv = SDL_stack_alloc(char *, argc + 1);
+    if (argv == NULL) {
+        return OutOfMemory();
+    }
+    ParseCommandLine(cmdline, argv);
+
+    /* Run the main program */
+    console_main(argc, argv);
+
+    SDL_stack_free(argv);
+
+    SDL_free(cmdline);
+
+    /* Hush little compiler, don't you cry... */
+    return 0;
+}
+
+#endif /* __WIN32__ */
+
+/* vi: set ts=4 sw=4 expandtab: */

src/main/windows/version.rc

@@ -0,0 +1,38 @@
+
+#include "winresrc.h"
+
+LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// Version
+//
+
+VS_VERSION_INFO VERSIONINFO
+ FILEVERSION 2,0,0,0
+ PRODUCTVERSION 2,0,0,0
+ 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, 0, 0\0"
+            VALUE "InternalName", "SDL\0"
+            VALUE "LegalCopyright", "Copyright <20> 2013 Sam Lantinga\0"
+            VALUE "OriginalFilename", "SDL.dll\0"
+            VALUE "ProductName", "Simple DirectMedia Layer\0"
+            VALUE "ProductVersion", "2, 0, 0, 0\0"
+        END
+    END
+    BLOCK "VarFileInfo"
+    BEGIN
+        VALUE "Translation", 0x409, 1200
+    END
+END