src/hb-blob.cc: Fix mmap functionality with UWP.

src/hb-blob.cc

@@ -574,18 +574,45 @@ fail_without_close:
   wchar_t * wchar_file_name = (wchar_t *) malloc (sizeof (wchar_t) * size);
   if (unlikely (wchar_file_name == nullptr)) goto fail_without_close;
   mbstowcs (wchar_file_name, file_name, size);
+#if defined(WINAPI_FAMILY) && (WINAPI_FAMILY==WINAPI_FAMILY_PC_APP || WINAPI_FAMILY==WINAPI_FAMILY_PHONE_APP)
+  {
+    CREATEFILE2_EXTENDED_PARAMETERS ceparams = { 0 };
+    ceparams.dwSize = sizeof(CREATEFILE2_EXTENDED_PARAMETERS);
+    ceparams.dwFileAttributes = FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED & 0xFFFF;
+    ceparams.dwFileFlags = FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED & 0xFFF00000;
+    ceparams.dwSecurityQosFlags = FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED & 0x000F0000;
+    ceparams.lpSecurityAttributes = nullptr;
+    ceparams.hTemplateFile = nullptr;
+    fd = CreateFile2 (wchar_file_name, GENERIC_READ, FILE_SHARE_READ,
+                      OPEN_EXISTING, &ceparams);
+  }
+#else
   fd = CreateFileW (wchar_file_name, GENERIC_READ, FILE_SHARE_READ, nullptr,
 		    OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL|FILE_FLAG_OVERLAPPED,
 		    nullptr);
+#endif
   free (wchar_file_name);
 
   if (unlikely (fd == INVALID_HANDLE_VALUE)) goto fail_without_close;
 
+#if defined(WINAPI_FAMILY) && (WINAPI_FAMILY==WINAPI_FAMILY_PC_APP || WINAPI_FAMILY==WINAPI_FAMILY_PHONE_APP)
+  {
+    LARGE_INTEGER length;
+    GetFileSizeEx (fd, &length);
+    file->length = length.LowPart;
+    file->mapping = CreateFileMappingFromApp (fd, nullptr, PAGE_READONLY, length.QuadPart, nullptr);
+  }
+#else
   file->length = (unsigned long) GetFileSize (fd, nullptr);
   file->mapping = CreateFileMapping (fd, nullptr, PAGE_READONLY, 0, 0, nullptr);
+#endif
   if (unlikely (file->mapping == nullptr)) goto fail;
 
+#if defined(WINAPI_FAMILY) && (WINAPI_FAMILY==WINAPI_FAMILY_PC_APP || WINAPI_FAMILY==WINAPI_FAMILY_PHONE_APP)
+  file->contents = (char *) MapViewOfFileFromApp (file->mapping, FILE_MAP_READ, 0, 0);
+#else
   file->contents = (char *) MapViewOfFile (file->mapping, FILE_MAP_READ, 0, 0, 0);
+#endif
   if (unlikely (file->contents == nullptr)) goto fail;
 
   CloseHandle (fd);

src/hb.hh

@@ -237,7 +237,9 @@ struct _hb_alignof
 #    undef _WIN32_WINNT
 #  endif
 #  ifndef _WIN32_WINNT
-#    define _WIN32_WINNT 0x0600
+#    if !defined(WINAPI_FAMILY) || !(WINAPI_FAMILY==WINAPI_FAMILY_PC_APP || WINAPI_FAMILY==WINAPI_FAMILY_PHONE_APP)
+#      define _WIN32_WINNT 0x0600
+#    endif
 #  endif
 #  ifndef WIN32_LEAN_AND_MEAN
 #    define WIN32_LEAN_AND_MEAN 1