Initial commit

engines/mads/sound.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 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/fmopl.h"
+#include "common/memstream.h"
+#include "mads/sound.h"
+#include "mads/mads.h"
+#include "mads/nebular/sound_nebular.h"
+
+namespace Audio {
+class Mixer;
+}
+
+namespace MADS {
+
+SoundManager::SoundManager(MADSEngine *vm, Audio::Mixer *mixer) {
+	_vm = vm;
+	_mixer = mixer;
+	_driver = nullptr;
+	_pollSoundEnabled = false;
+	_soundPollFlag = false;
+	_newSoundsPaused = false;
+	_masterVolume = 255;
+
+	_preferRoland = false;
+
+	_opl = OPL::Config::create();
+	_opl->init();
+
+	// Validate sound files
+	switch (_vm->getGameID()) {
+	case GType_RexNebular:
+		Nebular::ASound::validate();
+		break;
+	default:
+		break;
+	}
+}
+
+SoundManager::~SoundManager() {
+	if (_driver) {
+		_driver->stop();
+		delete _driver;
+	}
+
+	delete _opl;
+}
+
+void SoundManager::init(int sectionNumber) {
+	assert(sectionNumber > 0 && sectionNumber < 10);
+
+	if (_driver != nullptr)
+		delete _driver;
+
+	switch (_vm->getGameID()) {
+	case GType_RexNebular:
+		switch (sectionNumber) {
+		case 1:
+			_driver = new Nebular::ASound1(_mixer, _opl);
+			break;
+		case 2:
+			_driver = new Nebular::ASound2(_mixer, _opl);
+			break;
+		case 3:
+			_driver = new Nebular::ASound3(_mixer, _opl);
+			break;
+		case 4:
+			_driver = new Nebular::ASound4(_mixer, _opl);
+			break;
+		case 5:
+			_driver = new Nebular::ASound5(_mixer, _opl);
+			break;
+		case 6:
+			_driver = new Nebular::ASound6(_mixer, _opl);
+			break;
+		case 7:
+			_driver = new Nebular::ASound7(_mixer, _opl);
+			break;
+		case 8:
+			_driver = new Nebular::ASound8(_mixer, _opl);
+			break;
+		case 9:
+			_driver = new Nebular::ASound9(_mixer, _opl);
+			break;
+		default:
+			_driver = nullptr;
+			return;
+		}
+		break;
+
+	default:
+		warning("SoundManager: Unknown game");
+		_driver = nullptr;
+		return;
+	}
+
+	// Set volume for newly loaded driver
+	_driver->setVolume(_masterVolume);
+}
+
+void SoundManager::closeDriver() {
+	if (_driver) {
+		command(0);
+		setEnabled(false);
+		stop();
+
+		removeDriver();
+	}
+}
+
+void SoundManager::removeDriver() {
+	delete _driver;
+	_driver = nullptr;
+}
+
+void SoundManager::setEnabled(bool flag) {
+	_pollSoundEnabled = flag;
+	_soundPollFlag = false;
+}
+
+void SoundManager::pauseNewCommands() {
+	_newSoundsPaused = true;
+}
+
+void SoundManager::startQueuedCommands() {
+	_newSoundsPaused = false;
+
+	while (!_queuedCommands.empty()) {
+		int commandId = _queuedCommands.pop();
+		command(commandId);
+	}
+}
+
+void SoundManager::setVolume(int volume) {
+	_masterVolume = volume;
+
+	if (_driver)
+		_driver->setVolume(volume);
+}
+
+void SoundManager::command(int commandId, int param) {
+	if (_newSoundsPaused) {
+		if (_queuedCommands.size() < 8)
+			_queuedCommands.push(commandId);
+	} else if (_driver) {
+		// Note: I don't know any way to identify music commands versus sfx
+		// commands, so if sfx is mute, then so is music
+		if (_vm->_soundFlag)
+			_driver->command(commandId, param);
+	}
+}
+
+void SoundManager::stop() {
+	if (_driver)
+		_driver->stop();
+}
+
+void SoundManager::noise() {
+	if (_driver)
+		_driver->noise();
+}
+
+} // End of namespace MADS