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273
common/lua/scummvm_file.cpp
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273
common/lua/scummvm_file.cpp
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/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "scummvm_file.h"
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#include "common/config-manager.h"
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#include "common/language.h"
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namespace Lua {
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LuaFileProxy *LuaFileProxy::create(const Common::String &filename, const Common::String &mode) {
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if (filename.contains("config.lua"))
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return new LuaFileConfig(filename, mode);
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return new LuaFileRead(Common::Path(filename, '/'), mode);
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}
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LuaFileConfig::LuaFileConfig(const Common::String &filename, const Common::String &mode) : _readPos(0) {
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assert(filename.contains("config.lua"));
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if (mode == "r")
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setupConfigFile();
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}
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Common::String LuaFileConfig::formatDouble(double value) {
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// This is a bit hackish. The point of it is that it's important that
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// we ignore the locale decimal mark and force it to be a point. If it
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// would happen to be a comma instead, it seems that it's seen as two
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// comma-separated integers rather than one floating-point value. Or
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// something like that.
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bool negative = value < 0.0;
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value = fabs(value);
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double integerPart = floor(value);
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double fractionalPart = (value - integerPart) * 1000000.0;
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return Common::String::format("%s%.0f.%.0f", negative ? "-" : "", integerPart, fractionalPart);
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}
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void LuaFileConfig::setupConfigFile() {
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double sfxVolume = !ConfMan.hasKey("sfx_volume") ? 1.0 : 1.0 * ConfMan.getInt("sfx_volume") / 255.0;
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double musicVolume = !ConfMan.hasKey("music_volume") ? 0.5 : 1.0 * ConfMan.getInt("music_volume") / 255.0;
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double speechVolume = !ConfMan.hasKey("speech_volume") ? 1.0 : 1.0 * ConfMan.getInt("speech_volume") / 255.0;
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bool subtitles = !ConfMan.hasKey("subtitles") ? true : ConfMan.getBool("subtitles");
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_readData = Common::String::format(
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"GAME_LANGUAGE = \"%s\"\r\n\
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GAME_SUBTITLES = %s\r\n\
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MAX_MEMORY_USAGE = 256000000\r\n\
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GFX_VSYNC_ACTIVE = true\r\n\
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SFX_SAMPLING_RATE = 44100\r\n\
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SFX_CHANNEL_COUNT = 32\r\n\
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SFX_SOUND_VOLUME = %s\r\n\
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SFX_MUSIC_VOLUME = %s\r\n\
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SFX_SPEECH_VOLUME = %s\r\n",
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getLanguage().c_str(), subtitles ? "true" : "false",
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formatDouble(sfxVolume).c_str(),
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formatDouble(musicVolume).c_str(),
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formatDouble(speechVolume).c_str());
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_readPos = 0;
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}
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LuaFileConfig::~LuaFileConfig() {
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if (!_settings.empty())
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writeSettings();
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}
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size_t LuaFileConfig::read(void *ptr, size_t size, size_t count) {
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size_t bytesRead = MIN<size_t>(_readData.size() - _readPos, size * count);
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memmove(ptr, &_readData.c_str()[_readPos], bytesRead);
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_readPos += bytesRead;
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return bytesRead / size;
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}
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size_t LuaFileConfig::write(const char *ptr, size_t count) {
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// Loop through the provided line(s)
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while (*ptr) {
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if ((*ptr == '-') && (*(ptr + 1) == '-')) {
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// Comment line to skip over
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while ((*ptr != '\r') && (*ptr != '\n'))
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++ptr;
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} else {
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// Legitimate data
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const char *p = strchr(ptr, '\n');
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if (!p) p = ptr + strlen(ptr);
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while ((*p == '\r') || (*p == '\n'))
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++p;
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_settings += Common::String(ptr, p - ptr);
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ptr = p;
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}
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while ((*ptr == '\r') || (*ptr == '\n'))
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++ptr;
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}
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return count;
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}
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void LuaFileConfig::writeSettings() {
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// Loop through the setting lines
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const char *pSrc = _settings.c_str();
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while (*pSrc) {
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if ((*pSrc != '\r') && (*pSrc != '\n')) {
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const char *p = strchr(pSrc, '=');
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assert(p);
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// Get the setting name
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const char *pEnd = p - 1;
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while (*pEnd == ' ')
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--pEnd;
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Common::String settingName(pSrc, pEnd - pSrc + 1);
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// Get the setting value
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const char *pStart = p + 1;
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while (*pStart == ' ')
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++pStart;
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pEnd = pStart + 1;
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while ((*pEnd != '\r') && (*pEnd != '\n') && (*pEnd != '\0'))
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++pEnd;
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Common::String value(pStart + (*pStart == '"' ? 1 : 0), pEnd - pStart - (*pStart == '"' ? 2 : 0));
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// Update the setting
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updateSetting(settingName, value);
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pSrc = pEnd;
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}
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// Move to next line
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while ((*pSrc == '\r') || (*pSrc == '\n'))
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++pSrc;
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}
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ConfMan.flushToDisk();
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}
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void LuaFileConfig::updateSetting(const Common::String &setting, const Common::String &value) {
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if (setting == "GAME_LANGUAGE")
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setLanguage(value);
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else if (setting == "GAME_SUBTITLES")
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ConfMan.setBool("subtitles", value == "true");
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else if (setting == "SFX_SOUND_VOLUME") {
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double v = strtod(value.c_str(), NULL);
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ConfMan.setInt("sfx_volume", (int)(v * 255));
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} else if (setting == "SFX_MUSIC_VOLUME") {
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double v = strtod(value.c_str(), NULL);
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ConfMan.setInt("music_volume", (int)(v * 255));
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} else if (setting == "SFX_SPEECH_VOLUME") {
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double v = strtod(value.c_str(), NULL);
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ConfMan.setInt("speech_volume", (int)(v * 255));
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} else {
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// All other settings are ignored
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}
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}
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/**
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* Get the language code used by the game for each language it supports
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*/
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Common::String LuaFileConfig::getLanguage() {
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Common::Language lang = Common::parseLanguage(ConfMan.get("language"));
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switch (lang) {
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case Common::EN_ANY:
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return "en";
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case Common::DE_DEU:
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return "de";
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case Common::ES_ESP:
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return "es";
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case Common::FR_FRA:
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return "fr";
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case Common::HR_HRV:
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return "hr";
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case Common::HU_HUN:
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return "hu";
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case Common::IT_ITA:
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return "it";
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case Common::PL_POL:
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return "pl";
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case Common::PT_BRA:
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return "pt";
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case Common::RU_RUS:
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return "ru";
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case Common::HE_ISR:
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return "he";
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default:
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error("Unknown language '%s' encountered", ConfMan.get("language").c_str());
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break;
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}
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}
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/**
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* Set the language code fro the game
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*/
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void LuaFileConfig::setLanguage(const Common::String &lang) {
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if (lang == "en")
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ConfMan.set("language", Common::getLanguageCode(Common::EN_ANY));
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else if (lang == "de")
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ConfMan.set("language", Common::getLanguageCode(Common::DE_DEU));
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else if (lang == "es")
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ConfMan.set("language", Common::getLanguageCode(Common::ES_ESP));
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else if (lang == "fr")
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ConfMan.set("language", Common::getLanguageCode(Common::FR_FRA));
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else if (lang == "hr")
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ConfMan.set("language", Common::getLanguageCode(Common::HR_HRV));
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else if (lang == "hu")
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ConfMan.set("language", Common::getLanguageCode(Common::HU_HUN));
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else if (lang == "it")
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ConfMan.set("language", Common::getLanguageCode(Common::IT_ITA));
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else if (lang == "pl")
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ConfMan.set("language", Common::getLanguageCode(Common::PL_POL));
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else if (lang == "pt")
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ConfMan.set("language", Common::getLanguageCode(Common::PT_BRA));
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else if (lang == "ru")
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ConfMan.set("language", Common::getLanguageCode(Common::RU_RUS));
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else if (lang == "he")
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ConfMan.set("language", Common::getLanguageCode(Common::HE_ISR));
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else
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error("Unknown language encountered: %s", lang.c_str());
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}
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LuaFileRead::LuaFileRead(const Common::Path &filename, const Common::String &mode) {
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assert(mode == "r");
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if (!_file.open(filename))
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error("Could not open file %s", filename.toString().c_str());
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_size = _file.size();
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}
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bool LuaFileRead::eof() const {
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return _file.eos();
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}
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size_t LuaFileRead::read(void *ptr, size_t size, size_t count) {
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assert(size == 1);
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byte *dataPtr = (byte *)ptr;
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while (count > 0) {
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byte c = _file.readByte();
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if (_file.eos())
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break;
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if (c == '\r')
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continue;
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*dataPtr++ = c;
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--count;
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}
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return dataPtr - (byte *)ptr;
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}
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size_t LuaFileRead::write(const char *ptr, size_t count) {
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// Unsupported
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return 0;
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}
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} // End of namespace Lua
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