Initial commit

common/system.cpp

@@ -0,0 +1,277 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#define FORBIDDEN_SYMBOL_EXCEPTION_exit
+
+#include "common/system.h"
+#include "common/events.h"
+#include "common/fs.h"
+#include "common/file.h"
+#include "common/savefile.h"
+#include "common/str.h"
+#include "common/taskbar.h"
+#include "common/updates.h"
+#include "common/dialogs.h"
+#include "common/rotationmode.h"
+#include "common/str-enc.h"
+#include "common/textconsole.h"
+#include "common/text-to-speech.h"
+
+#include "backends/audiocd/default/default-audiocd.h"
+#include "backends/fs/fs-factory.h"
+#include "backends/timer/default/default-timer.h"
+#include "backends/dlc/store.h"
+
+OSystem *g_system = nullptr;
+
+OSystem::OSystem() {
+	_audiocdManager = nullptr;
+	_eventManager = nullptr;
+	_timerManager = nullptr;
+	_savefileManager = nullptr;
+#if defined(USE_TASKBAR)
+	_taskbarManager = nullptr;
+#endif
+#if defined(USE_UPDATES)
+	_updateManager = nullptr;
+#endif
+	_textToSpeechManager = nullptr;
+#if defined(USE_SYSDIALOGS)
+	_dialogManager = nullptr;
+#endif
+	_fsFactory = nullptr;
+	_dlcStore = nullptr;
+	_backendInitialized = false;
+}
+
+OSystem::~OSystem() {
+	delete _audiocdManager;
+	_audiocdManager = nullptr;
+
+	delete _eventManager;
+	_eventManager = nullptr;
+
+	delete _timerManager;
+	_timerManager = nullptr;
+
+#if defined(USE_TASKBAR)
+	delete _taskbarManager;
+	_taskbarManager = nullptr;
+#endif
+
+#if defined(USE_UPDATES)
+	delete _updateManager;
+	_updateManager = nullptr;
+#endif
+
+	delete _textToSpeechManager;
+	_textToSpeechManager = nullptr;
+
+#if defined(USE_SYSDIALOGS)
+	delete _dialogManager;
+	_dialogManager = nullptr;
+#endif
+
+	delete _savefileManager;
+	_savefileManager = nullptr;
+
+	delete _fsFactory;
+	_fsFactory = nullptr;
+
+	delete _dlcStore;
+	_dlcStore = nullptr;
+}
+
+void OSystem::initBackend() {
+	// Verify all managers has been set
+	if (!_audiocdManager)
+		error("Backend failed to instantiate audio CD manager");
+	if (!_eventManager)
+		error("Backend failed to instantiate event manager");
+	if (!getTimerManager())
+		error("Backend failed to instantiate timer manager");
+
+	if (!_savefileManager)
+		error("Backend failed to instantiate savefile manager");
+
+	// TODO: We currently don't check _fsFactory because not all ports
+	// set it.
+// 	if (!_fsFactory)
+// 		error("Backend failed to instantiate fs factory");
+
+	_backendInitialized = true;
+}
+
+void OSystem::destroy() {
+	_backendInitialized = false;
+	Common::String::releaseMemoryPoolMutex();
+	Common::releaseCJKTables();
+	delete this;
+}
+
+void OSystem::updateStartSettings(const Common::String &executable, Common::String &command, Common::StringMap &settings, Common::StringArray& additionalArgs) {
+	// If a command was explicitly passed on the command line, do not override it
+	if (!command.empty())
+		return;
+
+	bool autodetect = false;
+
+	// Check executable name
+	if (executable.equalsIgnoreCase("scummvm-auto")) {
+		warning("Will run in autodetection mode");
+		autodetect = true;
+	}
+
+	// Check for the autorun file
+	if (Common::File::exists("scummvm-autorun")) {
+		// Okay, the file exists. We open it and if it is empty, then run in the autorun mode
+		// If the file is not empty, we read command line arguments from it, one per line
+		warning("Autorun file is detected");
+
+		Common::File autorun;
+		Common::String line;
+		Common::String res;
+
+		if (autorun.open("scummvm-autorun")) {
+			while (!autorun.eos()) {
+				line = autorun.readLine();
+				if (!line.empty() && line[0] != '#') {
+					additionalArgs.push_back(line);
+					res += Common::String::format("\"%s\" ", line.c_str());
+				}
+			}
+		}
+
+		if (!res.empty())
+			warning("Autorun command: %s", res.c_str());
+		else
+			warning("Empty autorun file");
+
+		autorun.close();
+		autodetect = true;
+	}
+
+	if (autodetect && additionalArgs.empty()) {
+		warning("Running autodetection");
+		command = "auto-detect";
+		if (!settings.contains("path"))
+			settings["path"] = ".";
+	}
+}
+
+bool OSystem::setGraphicsMode(const char *name) {
+	if (!name)
+		return false;
+
+	// Special case for the 'default' filter
+	if (!scumm_stricmp(name, "normal") || !scumm_stricmp(name, "default")) {
+		return setGraphicsMode(getDefaultGraphicsMode());
+	}
+
+	const GraphicsMode *gm = getSupportedGraphicsModes();
+
+	while (gm->name) {
+		if (!scumm_stricmp(gm->name, name)) {
+			return setGraphicsMode(gm->id);
+		}
+		gm++;
+	}
+
+	return false;
+}
+
+bool OSystem::setStretchMode(const char *name) {
+	if (!name)
+		return false;
+
+	// Special case for the 'default' filter
+	if (!scumm_stricmp(name, "default")) {
+		return setStretchMode(getDefaultStretchMode());
+	}
+
+	const GraphicsMode *sm = getSupportedStretchModes();
+
+	while (sm->name) {
+		if (!scumm_stricmp(sm->name, name)) {
+			return setStretchMode(sm->id);
+		}
+		sm++;
+	}
+
+	return false;
+}
+
+bool OSystem::setRotationMode(int rotation) {
+	return setRotationMode(Common::parseRotationMode(rotation));
+}
+
+Common::Rect OSystem::getSafeOverlayArea(int16 *width, int16 *height) const {
+	int16 w = getOverlayWidth(),
+		  h = getOverlayHeight();
+	if (width) *width = w;
+	if (height) *height = h;
+	return Common::Rect(w, h);
+}
+
+void OSystem::fatalError() {
+	quit();
+	exit(1);
+}
+
+FilesystemFactory *OSystem::getFilesystemFactory() {
+	assert(_fsFactory);
+	return _fsFactory;
+}
+
+Common::SeekableReadStream *OSystem::createConfigReadStream() {
+	Common::FSNode file(getDefaultConfigFileName());
+	return file.createReadStream();
+}
+
+Common::WriteStream *OSystem::createConfigWriteStream() {
+#ifdef __DC__
+	return nullptr;
+#else
+	Common::FSNode file(getDefaultConfigFileName());
+	return file.createWriteStream();
+#endif
+}
+
+Common::Path OSystem::getDefaultConfigFileName() {
+	return "scummvm.ini";
+}
+
+Common::String OSystem::getSystemLanguage() const {
+	return "en_US";
+}
+
+bool OSystem::isConnectionLimited() {
+	warning("OSystem::isConnectionLimited(): not limited by default");
+	return false;
+}
+
+Common::TimerManager *OSystem::getTimerManager() {
+	return _timerManager;
+}
+
+Common::SaveFileManager *OSystem::getSavefileManager() {
+	return _savefileManager;
+}