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// license:BSD-3-Clause
// copyright-holders:Miodrag Milanovic
/***************************************************************************
language.cpp
Multi-language support.
***************************************************************************/
#include "emu.h"
static std::unordered_map<std::string, std::string> g_translation;
const char *lang_translate(const char *word)
{
if (g_translation.find(word) == g_translation.end())
{
return word;
}
return g_translation[word].c_str();
}
const UINT32 MO_MAGIC = 0x950412de;
const UINT32 MO_MAGIC_REVERSED = 0xde120495;
inline UINT32 endianchange(UINT32 value) {
UINT32 b0 = (value >> 0) & 0xff;
UINT32 b1 = (value >> 8) & 0xff;
UINT32 b2 = (value >> 16) & 0xff;
UINT32 b3 = (value >> 24) & 0xff;
return (b0 << 24) | (b1 << 16) | (b2 << 8) | b3;
}
void load_translation(emu_options &m_options)
{
g_translation.clear();
emu_file file(m_options.language_path(), OPEN_FLAG_READ);
auto name = std::string(m_options.language());
strreplace(name, " ", "_");
strreplace(name, "(", "");
strreplace(name, ")", "");
if (file.open(name.c_str(), PATH_SEPARATOR "strings.mo") == FILERR_NONE)
{
UINT64 size = file.size();
UINT32 *buffer = global_alloc_array(UINT32, size / 4 + 1);
file.read(buffer, size);
file.close();
if (buffer[0] != MO_MAGIC && buffer[0] != MO_MAGIC_REVERSED)
{
global_free_array(buffer);
return;
}
if (buffer[0] == MO_MAGIC_REVERSED)
{
for (auto i = 0; i < (size / 4) + 1; ++i)
{
buffer[i] = endianchange(buffer[i]);
}
}
UINT32 number_of_strings = buffer[2];
UINT32 original_table_offset = buffer[3] >> 2;
UINT32 translation_table_offset = buffer[4] >> 2;
const char *data = reinterpret_cast<const char*>(buffer);
for (auto i = 1; i < number_of_strings; ++i)
{
std::string original = (const char *)data + buffer[original_table_offset + 2 * i + 1];
std::string translation = (const char *)data + buffer[translation_table_offset + 2 * i + 1];
g_translation.insert(std::pair<std::string, std::string>(original, translation));
}
global_free_array(buffer);
}
}
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