1 files changed, 285 insertions, 0 deletions
diff --git a/engines/engine.cpp b/engines/engine.cpp
new file mode 100644
index 0000000000..740020ec33
--- /dev/null
+++ b/engines/engine.cpp
@@ -0,0 +1,285 @@
+/* ScummVM - Scumm Interpreter
+ * Copyright (C) 2002-2006 The ScummVM project
+ *
+ * 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 2
+ * 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ */
+
+#include "common/stdafx.h"
+#if defined(WIN32) && !defined (__SYMBIAN32__)
+#include <malloc.h>
+#endif
+#include "engines/engine.h"
+#include "common/config-manager.h"
+#include "common/file.h"
+#include "common/timer.h"
+#include "common/savefile.h"
+#include "common/system.h"
+#include "sound/mixer.h"
+#include "gui/debugger.h"
+#include "gui/message.h"
+
+#ifdef _WIN32_WCE
+extern bool isSmartphone(void);
+#endif
+
+/* FIXME - BIG HACK for MidiEmu */
+Engine *g_engine = 0;
+
+Engine::Engine(OSystem *syst)
+	: _system(syst),
+		_gameDataPath(ConfMan.get("path")),
+		_targetName(ConfMan.getActiveDomainName()){
+	g_engine = this;
+	_mixer = new Audio::Mixer();
+
+	_timer = Common::g_timer;
+
+	_saveFileMan = _system->getSavefileManager();
+
+	_autosavePeriod = ConfMan.getInt("autosave_period");
+}
+
+Engine::~Engine() {
+	delete _mixer;
+	delete _saveFileMan;
+
+	g_engine = NULL;
+}
+
+void Engine::initCommonGFX(bool defaultTo1XScaler) {
+	const Common::ConfigManager::Domain *transientDomain = ConfMan.getDomain(Common::ConfigManager::kTransientDomain);
+	const Common::ConfigManager::Domain *gameDomain = ConfMan.getActiveDomain();
+
+	assert(transientDomain);
+
+	const bool useDefaultGraphicsMode =
+		!transientDomain->contains("gfx_mode") &&
+		(
+		!gameDomain ||
+		!gameDomain->contains("gfx_mode") ||
+		!scumm_stricmp(gameDomain->get("gfx_mode").c_str(), "normal") ||
+		!scumm_stricmp(gameDomain->get("gfx_mode").c_str(), "default")
+		);
+
+	// See if the game should default to 1x scaler
+	if (useDefaultGraphicsMode && defaultTo1XScaler) {
+		// FIXME: As a hack, we use "1x" here. Would be nicer to use
+		// getDefaultGraphicsMode() instead, but right now, we do not specify
+		// whether that is a 1x scaler or not...
+		_system->setGraphicsMode("1x");
+	} else {
+		// Override global scaler with any game-specific define
+		if (ConfMan.hasKey("gfx_mode")) {
+			_system->setGraphicsMode(ConfMan.get("gfx_mode").c_str());
+		}
+	}
+
+	// Note: The following code deals with the fullscreen / ASR settings. This
+	// is a bit tricky, because there are three ways the user can affect these
+	// settings: Via the config file, via the command line, and via in-game
+	// hotkeys.
+	// Any global or command line settings already have been applied at the time
+	// we get here. Hence we only do something 
+
+	// (De)activate aspect-ratio correction as determined by the config settings
+	if (gameDomain && gameDomain->contains("aspect_ratio"))
+		_system->setFeatureState(OSystem::kFeatureAspectRatioCorrection, ConfMan.getBool("aspect_ratio"));
+
+	// (De)activate fullscreen mode as determined by the config settings
+	if (gameDomain && gameDomain->contains("fullscreen"))
+		_system->setFeatureState(OSystem::kFeatureFullscreenMode, ConfMan.getBool("fullscreen"));
+}
+
+void Engine::checkCD() {
+#if defined (WIN32) && !defined(_WIN32_WCE) && !defined(__SYMBIAN32__)
+	// It is a known bug under Windows that games that play CD audio cause
+	// ScummVM to crash if the data files are read from the same CD. Check
+	// if this appears to be the case and issue a warning.
+
+	// If we can find a compressed audio track, then it should be ok even
+	// if it's running from CD.
+
+#ifdef USE_VORBIS
+	if (Common::File::exists("track1.ogg"))
+		return;
+#endif
+#ifdef USE_FLAC
+	if (Common::File::exists("track1.fla") || Common::File::exists("track1.flac"))
+		return;
+#endif
+#ifdef USE_MAD
+	if (Common::File::exists("track1.mp3"))
+		return;
+#endif
+
+	char buffer[MAXPATHLEN];
+	int i;
+
+	if (strlen(_gameDataPath.c_str()) == 0) {
+		// That's it! I give up!
+		if (getcwd(buffer, MAXPATHLEN) == NULL)
+			return;
+	} else
+		strncpy(buffer, _gameDataPath.c_str(), MAXPATHLEN);
+
+	for (i = 0; i < MAXPATHLEN - 1; i++) {
+		if (buffer[i] == '\\')
+			break;
+	}
+
+	buffer[i + 1] = 0;
+
+	if (GetDriveType(buffer) == DRIVE_CDROM) {
+		GUI::MessageDialog dialog(
+			"You appear to be playing this game directly\n"
+			"from the CD. This is known to cause problems,\n"
+			"and it's therefore recommended that you copy\n"
+			"the data files to your hard disk instead.\n"
+			"See the README file for details.", "OK");
+		dialog.runModal();
+	}
+#endif
+}
+
+bool Engine::shouldPerformAutoSave(int lastSaveTime) {
+	const int diff = _system->getMillis() - lastSaveTime;
+	return _autosavePeriod != 0 && diff > _autosavePeriod * 1000;
+}
+
+void Engine::errorString(const char *buf1, char *buf2) {
+	strcpy(buf2, buf1);
+}
+
+void NORETURN CDECL error(const char *s, ...) {
+	char buf_input[STRINGBUFLEN];
+	char buf_output[STRINGBUFLEN];
+	va_list va;
+
+	// Generate the full error message
+	va_start(va, s);
+	vsnprintf(buf_input, STRINGBUFLEN, s, va);
+	va_end(va);
+
+
+	// Next, give the active engine (if any) a chance to augment the
+	// error message
+	if (g_engine) {
+		g_engine->errorString(buf_input, buf_output);
+	} else {
+		strcpy(buf_output, buf_input);
+	}
+
+
+	// Print the error message to stderr
+#ifdef __GP32__
+	printf("ERROR: %s\n", buf_output);
+#elif !defined(_WIN32_WCE)
+	fprintf(stderr, "%s!\n", buf_output);
+#endif
+
+
+#ifndef __GP32__
+	// Unless this error -originated- within the debugger itself, we
+	// now invoke the debugger, if available / supported.
+	if (g_engine) {
+		GUI::Debugger *debugger = g_engine->getDebugger();
+#ifdef _WIN32_WCE
+		if (isSmartphone())
+			debugger = 0;
+#endif
+		if (debugger && !debugger->isAttached()) {
+			debugger->attach(buf_output);
+			debugger->onFrame();
+		}
+	}
+#endif
+
+
+#if defined( USE_WINDBG )
+#if defined( _WIN32_WCE )
+	TCHAR buf_output_unicode[1024];
+	MultiByteToWideChar(CP_ACP, 0, buf_output, strlen(buf_output) + 1, buf_output_unicode, sizeof(buf_output_unicode));
+	OutputDebugString(buf_output_unicode);
+#else
+	OutputDebugString(buf_output);
+#endif
+#endif
+
+#if defined ( _WIN32_WCE )
+	drawError(buf_output);
+#endif
+
+#ifdef PALMOS_MODE
+	PalmFatalError(buf_output);
+#endif
+
+#ifdef __SYMBIAN32__
+	Symbian::FatalError(buf_output);
+#endif
+	// Finally exit. quit() will terminate the program if g_system is present
+	if (g_system)
+		g_system->quit();
+
+	exit(1);
+}
+
+void CDECL warning(const char *s, ...) {
+	char buf[STRINGBUFLEN];
+	va_list va;
+
+	va_start(va, s);
+	vsnprintf(buf, STRINGBUFLEN, s, va);
+	va_end(va);
+
+#ifdef __GP32__ //ph0x FIXME: implement fprint?
+	printf("WARNING: %s\n", buf);
+#else
+#if !defined (_WIN32_WCE) && !defined (__SYMBIAN32__)
+	fprintf(stderr, "WARNING: %s!\n", buf);
+#endif
+#endif
+#if defined( USE_WINDBG )
+	strcat(buf, "\n");
+#if defined( _WIN32_WCE )
+	TCHAR buf_unicode[1024];
+	MultiByteToWideChar(CP_ACP, 0, buf, strlen(buf) + 1, buf_unicode, sizeof(buf_unicode));
+	OutputDebugString(buf_unicode);
+#else
+	OutputDebugString(buf);
+#endif
+#endif
+}
+
+void checkHeap() {
+#if defined(WIN32) && !defined(__SYMBIAN32__)
+	if (_heapchk() != _HEAPOK) {
+		error("Heap is invalid!");
+	}
+#endif
+}
+
+void Engine::GUIErrorMessage(const Common::String msg) {
+	_system->setWindowCaption("Error");
+	_system->beginGFXTransaction();
+		initCommonGFX(false);
+		_system->initSize(320, 200);
+	_system->endGFXTransaction();
+
+	GUI::MessageDialog dialog(msg);
+	dialog.runModal();
+}