public static void load_translation(random_read file)
{
MemoryU8 translation_data_buffer; //std::unique_ptr<std::uint32_t []> translation_data;
PointerU32 translation_data; //std::unique_ptr<std::uint32_t []> translation_data;
std.unordered_map <string, std.pair <string, uint32_t> > translation_map = new std.unordered_map <string, std.pair <string, uint32_t> >(); //std::unordered_map<std::string_view, std::pair<char const *, std::uint32_t> > translation_map;
uint64_t size = 0;
if (file.length(out size) || (20 > size))
{
osd_printf_error("Error reading translation file: {0}-byte file is too small to contain translation data\n", size);
return;
}
translation_data_buffer = new MemoryU8((int)size + 3, true); //translation_data.reset(new (std::nothrow) std::uint32_t [(size + 3) / 4]);
translation_data = new PointerU32(f_translation_data);
if (translation_data == null)
{
osd_printf_error("Failed to allocate {0} bytes to load translation data file\n", size);
return;
}
size_t read;
file.read(translation_data, size, out read);
if (read != size)
{
osd_printf_error("Error reading translation file: requested {0} bytes but got {1} bytes\n", size, read);
translation_data = null; //translation_data.reset();
return;
}
if ((translation_data[0] != MO_MAGIC) && (translation_data[0] != MO_MAGIC_REVERSED))
{
osd_printf_error("Error reading translation file: unrecognized magic number {0}\n", translation_data[0]); //0x%08X
translation_data = null; //translation_data.reset();
return;
}
var fetch_word = new Func <size_t, uint32_t>(
(size_t offset) => //[reversed = translation_data[0] == MO_MAGIC_REVERSED, words = translation_data.get()] (size_t offset)
{
var reversed = translation_data[0] == MO_MAGIC_REVERSED;
var words = translation_data;
return(reversed ? swapendian_int32(words[offset]) : words[offset]);
});
// FIXME: check major/minor version number
if ((fetch_word(3) % 4) != 0 || (fetch_word(4) % 4) != 0)
{
osd_printf_error("Error reading translation file: table offsets {0} and {1} are not word-aligned\n", fetch_word(3), fetch_word(4));
translation_data = null; //translation_data.reset();
return;
}
uint32_t number_of_strings = fetch_word(2);
uint32_t original_table_offset = fetch_word(3) >> 2;
uint32_t translation_table_offset = fetch_word(4) >> 2;
if ((4 * (original_table_offset + ((uint64_t)number_of_strings * 2))) > size)
{
osd_printf_error("Error reading translation file: {0}-entry original string table at offset {1} extends past end of {2}-byte file\n", number_of_strings, fetch_word(3), size);
translation_data = null; //translation_data.reset();
return;
}
if ((4 * (translation_table_offset + ((uint64_t)number_of_strings * 2))) > size)
{
osd_printf_error("Error reading translation file: {0}-entry translated string table at offset {1} extends past end of {2}-byte file\n", number_of_strings, fetch_word(4), size);
translation_data = null; //translation_data.reset();
return;
}
osd_printf_verbose("Reading translation file: {0} strings, original table at word offset {1}, translated table at word offset {2}\n", number_of_strings, original_table_offset, translation_table_offset);
PointerU8 data = new PointerU8(translation_data); //char const *const data = reinterpret_cast<char const *>(translation_data.get());
for (uint32_t i = 1; number_of_strings > i; ++i)
{
uint32_t original_length = fetch_word(original_table_offset + (2 * i));
uint32_t original_offset = fetch_word(original_table_offset + (2 * i) + 1);
if ((original_length + original_offset) >= size)
{
osd_printf_error("Error reading translation file: {0}-byte original string {1} at offset {2} extends past end of {3}-byte file\n", original_length, i, original_offset, size);
continue;
}
if (data[original_length + original_offset] != 0)
{
osd_printf_error("Error reading translation file: {0}-byte original string {1} at offset {2} is not correctly NUL-terminated\n", original_length, i, original_offset);
continue;
}
uint32_t translation_length = fetch_word(translation_table_offset + (2 * i));
uint32_t translation_offset = fetch_word(translation_table_offset + (2 * i) + 1);
if ((translation_length + translation_offset) >= size)
{
osd_printf_error("Error reading translation file: {0}-byte translated string {1} at offset {2} extends past end of {3}-byte file\n", translation_length, i, translation_offset, size);
continue;
}
if (data[translation_length + translation_offset] != 0)
{
osd_printf_error("Error reading translation file: {0}-byte translated string {1} at offset {2} is not correctly NUL-terminated\n", translation_length, i, translation_offset);
continue;
}
string original = data.ToString((int)original_offset, int.MaxValue); //std::string_view const original(&data[original_offset], original_length);
string translation = data.ToString((int)translation_offset, int.MaxValue); //char const *const translation(&data[translation_offset]);
var ins = translation_map.emplace(original, std.make_pair(translation, translation_length)); //auto const ins = translation_map.emplace(original, std::make_pair(translation, translation_length));
if (!ins)
{
osd_printf_warning(
"Loading translation file: translation {0} '{1}'='{2}' conflicts with previous translation '{3}'='{4}'\n",
i,
original,
translation,
null, //ins.first->first,
null); //ins.first->second.first);
}
}
osd_printf_verbose("Loaded {0} translated string from file\n", translation_map.size());
f_translation_data = translation_data;
f_translation_map = translation_map;
}
public static read_stream zlib_read(random_read stream, size_t read_chunk) //std::unique_ptr<read_stream> zlib_read(random_read &stream, std::size_t read_chunk) noexcept;
{
return(new zlib_read_filter <random_read>(stream, read_chunk)); //return read_stream::ptr(new (std::nothrow) zlib_read_filter<random_read>(stream, read_chunk));
}
