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)); }