GLK: Initial skeleton engine

engines/gargoyle/configure.engine

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+# This file is included from the main "configure" script
+# add_engine [name] [desc] [build-by-default] [subengines] [base games] [deps]
+add_engine gargoyle "Interactive Fiction games" no

engines/gargoyle/detection.cpp

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+/* 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 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.
+ *
+ */
+
+#include "gargoyle/gargoyle.h"
+
+#include "base/plugins.h"
+#include "common/savefile.h"
+#include "common/str-array.h"
+#include "common/memstream.h"
+#include "engines/advancedDetector.h"
+#include "common/system.h"
+#include "graphics/colormasks.h"
+#include "graphics/surface.h"
+
+#define MAX_SAVES 99
+
+namespace Gargoyle {
+
+struct GargoyleGameDescription {
+	ADGameDescription desc;
+};
+
+uint32 GargoyleEngine::getFeatures() const {
+	return _gameDescription->desc.flags;
+}
+
+bool GargoyleEngine::isDemo() const {
+	return (bool)(_gameDescription->desc.flags & ADGF_DEMO);
+}
+
+Common::Language GargoyleEngine::getLanguage() const {
+	return _gameDescription->desc.language;
+}
+
+} // End of namespace Gargoyle
+
+static const PlainGameDescriptor GargoyleGames[] = {
+	{"Gargoyle", "Gargoyle Games"},
+	{0, 0}
+};
+
+#include "gargoyle/detection_tables.h"
+
+class GargoyleMetaEngine : public AdvancedMetaEngine {
+public:
+	GargoyleMetaEngine() : AdvancedMetaEngine(Gargoyle::gameDescriptions, sizeof(Gargoyle::GargoyleGameDescription), GargoyleGames) {
+		_maxScanDepth = 3;
+	}
+
+	virtual const char *getName() const {
+		return "Gargoyle Engine";
+	}
+
+	virtual const char *getOriginalCopyright() const {
+		return "Gargoyle Engine (c)";
+	}
+
+	virtual bool hasFeature(MetaEngineFeature f) const;
+	virtual bool createInstance(OSystem *syst, Engine **engine, const ADGameDescription *desc) const;
+	virtual SaveStateList listSaves(const char *target) const;
+	virtual int getMaximumSaveSlot() const;
+	virtual void removeSaveState(const char *target, int slot) const;
+	SaveStateDescriptor querySaveMetaInfos(const char *target, int slot) const;
+};
+
+bool GargoyleMetaEngine::hasFeature(MetaEngineFeature f) const {
+	return
+	    (f == kSupportsListSaves) ||
+		(f == kSupportsLoadingDuringStartup) ||
+		(f == kSupportsDeleteSave) ||
+		(f == kSavesSupportMetaInfo) ||
+		(f == kSavesSupportThumbnail);
+}
+
+bool Gargoyle::GargoyleEngine::hasFeature(EngineFeature f) const {
+	return
+		(f == kSupportsRTL) ||
+		(f == kSupportsLoadingDuringRuntime) ||
+		(f == kSupportsSavingDuringRuntime);
+}
+
+bool GargoyleMetaEngine::createInstance(OSystem *syst, Engine **engine, const ADGameDescription *desc) const {
+	const Gargoyle::GargoyleGameDescription *gd = (const Gargoyle::GargoyleGameDescription *)desc;
+	*engine = new Gargoyle::GargoyleEngine(syst, gd);
+
+	return gd != 0;
+}
+
+SaveStateList GargoyleMetaEngine::listSaves(const char *target) const {
+	SaveStateList saveList;
+	return saveList;
+}
+
+int GargoyleMetaEngine::getMaximumSaveSlot() const {
+	return MAX_SAVES;
+}
+
+void GargoyleMetaEngine::removeSaveState(const char *target, int slot) const {
+}
+
+SaveStateDescriptor GargoyleMetaEngine::querySaveMetaInfos(const char *target, int slot) const {
+	return SaveStateDescriptor();
+}
+
+
+#if PLUGIN_ENABLED_DYNAMIC(GARGOYLE)
+	REGISTER_PLUGIN_DYNAMIC(Gargoyle, PLUGIN_TYPE_ENGINE, GargoyleMetaEngine);
+#else
+	REGISTER_PLUGIN_STATIC(GARGOYLE, PLUGIN_TYPE_ENGINE, GargoyleMetaEngine);
+#endif

engines/gargoyle/detection_tables.h

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+/* 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 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.
+ *
+ */
+
+namespace Gargoyle {
+	
+static const GargoyleGameDescription gameDescriptions[] = {
+	{
+		{
+			"Gargoyle",
+			0,
+			AD_ENTRY1s("dummy", "0", 0),
+			Common::EN_ANY,
+			Common::kPlatformDOS,
+			ADGF_NO_FLAGS,
+			GUIO0()
+		},
+	},
+
+	{ AD_TABLE_END_MARKER }
+};
+
+} // End of namespace Gargoyle

engines/gargoyle/gargoyle.cpp

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+/* 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 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.
+ *
+ */
+
+#include "common/scummsys.h"
+#include "common/config-manager.h"
+#include "common/debug-channels.h"
+#include "common/events.h"
+#include "engines/util.h"
+#include "graphics/scaler.h"
+#include "graphics/thumbnail.h"
+#include "gargoyle/gargoyle.h"
+
+namespace Gargoyle {
+
+GargoyleEngine::GargoyleEngine(OSystem *syst, const GargoyleGameDescription *gameDesc)
+	: _gameDescription(gameDesc), Engine(syst) {
+}
+
+GargoyleEngine::~GargoyleEngine() {
+}
+
+void GargoyleEngine::initialize() {
+	// Set up debug channels
+	DebugMan.addDebugChannel(kDebugCore, "core", "Core engine debug level");
+	DebugMan.addDebugChannel(kDebugScripts, "scripts", "Game scripts");
+	DebugMan.addDebugChannel(kDebugGraphics, "graphics", "Graphics handling");
+	DebugMan.addDebugChannel(kDebugSound, "sound", "Sound and Music handling");
+
+	initGraphics(640, 480, false);
+}
+
+Common::Error GargoyleEngine::run() {
+	initialize();
+
+	return Common::kNoError;
+}
+
+} // End of namespace Gargoyle

engines/gargoyle/gargoyle.h

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+/* 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 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.
+ *
+ */
+
+#ifndef GARGOYLE_GARGOLE_H
+#define GARGOYLE_GARGOLE_H
+
+#include "common/scummsys.h"
+#include "common/system.h"
+#include "common/serializer.h"
+#include "engines/advancedDetector.h"
+#include "engines/engine.h"
+
+namespace Gargoyle {
+
+enum GargoyleDebugChannels {
+	kDebugCore      = 1 << 0,
+	kDebugScripts	= 1 << 1,
+	kDebugGraphics	= 1 << 2,
+	kDebugSound     = 1 << 3
+};
+
+#define GARGOYLE_SAVEGAME_VERSION 1
+
+struct GargoyleGameDescription;
+
+struct GargoyleSavegameHeader {
+	uint8 _version;
+	Common::String _saveName;
+	Graphics::Surface *_thumbnail;
+	int _year, _month, _day;
+	int _hour, _minute;
+	int _totalFrames;
+};
+
+class GargoyleEngine : public Engine {
+private:
+	/**
+	 * Handles basic initialization
+	 */
+	void initialize();
+protected:
+	const GargoyleGameDescription *_gameDescription;
+	int _loadSaveSlot;
+
+	// Engine APIs
+	virtual Common::Error run();
+	virtual bool hasFeature(EngineFeature f) const;
+public:
+	GargoyleEngine(OSystem *syst, const GargoyleGameDescription *gameDesc);
+	virtual ~GargoyleEngine();
+
+	uint32 getFeatures() const;
+	bool isDemo() const;
+	Common::Language getLanguage() const;
+};
+
+} // End of namespace Gargoyle
+
+#endif

engines/gargoyle/module.mk

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+MODULE := engines/gargoyle
+
+MODULE_OBJS := \
+	detection.o \
+	gargoyle.o
+
+# This module can be built as a plugin
+ifeq ($(ENABLE_GARGOYLE), DYNAMIC_PLUGIN)
+PLUGIN := 1
+endif
+
+# Include common rules
+include $(srcdir)/rules.mk