Merge commit 'dec0d4ec4153bf9fc2b78ae6c2df45b6ea8dde7a' as 'external/sdl/SDL'

external/sdl/SDL/src/locale/winrt/SDL_syslocale.c

@@ -0,0 +1,54 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+
+#include <windows.h>
+
+#include "../SDL_syslocale.h"
+
+/*using namespace Windows::Graphics::Display;*/
+#include <wchar.h>
+
+int SDL_SYS_GetPreferredLocales(char *buf, size_t buflen)
+{
+    WCHAR wbuffer[128] = L"";
+    int ret = 0;
+
+    /* !!! FIXME: do we not have GetUserPreferredUILanguages on WinPhone or UWP? */
+#if SDL_WINAPI_FAMILY_PHONE
+    ret = GetLocaleInfoEx(LOCALE_NAME_SYSTEM_DEFAULT, LOCALE_SNAME, wbuffer, SDL_arraysize(wbuffer));
+#else
+    ret = GetSystemDefaultLocaleName(wbuffer, SDL_arraysize(wbuffer));
+#endif
+
+    if (ret > 0) {
+        /* Need to convert LPWSTR to LPSTR, that is wide char to char. */
+        int i;
+
+        if (((size_t)ret) >= (buflen - 1)) {
+            ret = (int)(buflen - 1);
+        }
+        for (i = 0; i < ret; i++) {
+            buf[i] = (char)wbuffer[i]; /* assume this was ASCII anyhow. */
+        }
+    }
+    return 0;
+}