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engines/awe/awe.cpp

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+/* ScummVM - Graphic Adventure AweEngine
+ *
+ * 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/>.
+ *
+ */
+
+#include "audio/mixer.h"
+#include "common/config-manager.h"
+#include "common/rendermode.h"
+#include "common/stream.h"
+#include "awe/awe.h"
+#include "awe/engine.h"
+#include "awe/gfx.h"
+#include "awe/resource.h"
+#include "awe/script.h"
+#include "awe/system_stub.h"
+#include "awe/video.h"
+
+namespace Awe {
+
+AweEngine *g_engine;
+
+
+/* unused
+static const struct {
+	const char *name;
+	int type;
+} GRAPHICS[] = {
+	{ "original", GRAPHICS_ORIGINAL },
+	{ "software", GRAPHICS_SOFTWARE },
+	{ "gl", GRAPHICS_GL },
+	{ nullptr,  -1 }
+};
+
+static const struct {
+	const char *name;
+	int difficulty;
+} DIFFICULTIES[] = {
+	{ "easy", DIFFICULTY_EASY },
+	{ "normal", DIFFICULTY_NORMAL },
+	{ "hard", DIFFICULTY_HARD },
+	{ nullptr,  -1 }
+};
+*/
+
+bool Gfx::_is1991;
+Graphics::PixelFormat Gfx::_format;
+bool Video::_useEGA;
+Difficulty Script::_difficulty;
+bool Script::_useRemasteredAudio;
+
+static Gfx *createGraphics(int type) {
+	switch (type) {
+	case GRAPHICS_ORIGINAL:
+		Gfx::_is1991 = true;
+		// fall-through
+	case GRAPHICS_SOFTWARE:
+		debugC(kDebugInfo, "Using software graphics");
+		return GraphicsSoft_create();
+	case GRAPHICS_GL:
+		debugC(kDebugInfo, "Using GL graphics");
+#ifdef USE_GL
+		return GraphicsGL_create();
+#else
+		break;
+#endif
+
+	default:
+		break;
+
+	}
+
+	return nullptr;
+}
+
+static int getGraphicsType(DataType type) {
+	switch (type) {
+	case DT_15TH_EDITION:
+	case DT_20TH_EDITION:
+	case DT_3DO:
+		return GRAPHICS_GL;
+	default:
+		return GRAPHICS_ORIGINAL;
+	}
+}
+
+AweEngine::AweEngine(OSystem *syst, const Awe::AweGameDescription *gameDesc)
+		: Engine(syst), _gameDescription(gameDesc),
+		_random("Awe") {
+	g_engine = this;
+
+	Gfx::_is1991 = false;
+	Gfx::_format = Graphics::PixelFormat::createFormatCLUT8();
+
+	if (ConfMan.hasKey("render_mode") && !ConfMan.get("render_mode").empty())
+		Video::_useEGA = (Common::parseRenderMode(ConfMan.get("render_mode")) == Common::kRenderEGA) ? true : false;
+	else
+		Video::_useEGA = false;
+
+	Script::_difficulty = DIFFICULTY_NORMAL;
+	Script::_useRemasteredAudio = true;
+}
+
+AweEngine::~AweEngine() {
+}
+
+Common::Error AweEngine::run() {
+	// Setup mixer
+	if (!_mixer->isReady()) {
+		warning("Sound initialization failed.");
+	}
+
+	const int part = 16001;
+	const Language lang = getLanguage();
+	const DataType dataType = getDataType();
+	int graphicsType = GRAPHICS_SOFTWARE;
+
+	DisplayMode dm;
+	dm.mode = DisplayMode::WINDOWED;
+	dm.width = GFX_W;
+	dm.height = GFX_H;
+	dm.opengl = (graphicsType == GRAPHICS_GL);
+
+	const bool defaultGraphics = true;
+	const bool demo3JoyInputs = false;
+
+	Sound snd(_mixer);
+	Awe::Engine *e = new Awe::Engine(&snd, dataType, part);
+
+	if (defaultGraphics) {
+		// if not set, use original software graphics for 199x editions and GL for the anniversary and 3DO versions
+		graphicsType = getGraphicsType(dataType);
+		dm.opengl = (graphicsType == GRAPHICS_GL);
+	}
+
+	if (graphicsType != GRAPHICS_GL && dataType == DT_3DO) {
+		graphicsType = GRAPHICS_SOFTWARE;
+		// TODO: Select the best pixel format at runtime
+		Gfx::_format = Graphics::PixelFormat(2, 5, 5, 5, 0, 10, 5, 0, 0);
+	}
+
+	Gfx *graphics = createGraphics(graphicsType);
+
+	if (!graphics)
+		error("The Anniversary versions graphics is not currently supported");
+
+	if (dataType == DT_20TH_EDITION) {
+		switch (Script::_difficulty) {
+		case DIFFICULTY_EASY:
+			debugC(kDebugInfo, "Using easy difficulty");
+			break;
+		case DIFFICULTY_NORMAL:
+			debugC(kDebugInfo, "Using normal difficulty");
+			break;
+		case DIFFICULTY_HARD:
+			debugC(kDebugInfo, "Using hard difficulty");
+			break;
+		}
+	}
+
+	if (dataType == DT_15TH_EDITION || dataType == DT_20TH_EDITION) {
+		if (Script::_useRemasteredAudio) {
+			debugC(kDebugInfo, "Using remastered audio");
+		} else {
+			debugC(kDebugInfo, "Using original audio");
+		}
+	}
+
+	SystemStub *stub = SystemStub_create(
+		dataType == DT_15TH_EDITION ||
+		dataType == DT_20TH_EDITION
+	);
+	stub->init(dm);
+	e->setSystemStub(stub, graphics);
+
+	if (demo3JoyInputs && dataType == DT_DOS) {
+		e->_res.readDemo3Joy();
+	}
+
+	e->_res._copyProtection = ConfMan.getBool("copy_protection");
+	e->setup(lang, graphicsType);
+
+	while (!stub->_pi.quit) {
+		e->run();
+	}
+
+	_mixer->stopAll();
+
+	e->finish();
+	delete e;
+	stub->fini();
+	delete stub;
+	delete graphics;
+
+	return Common::kNoError;
+}
+
+DataType AweEngine::getDataType() const {
+	return (DataType)_gameDescription->_gameType;
+}
+
+Common::Language AweEngine::getLanguage() const {
+	return _gameDescription->desc.language;
+}
+
+} // namespace Awe