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engines/cryomni3d/versailles/music.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/audiostream.h"
+#include "audio/decoders/wave.h"
+
+#include "common/config-manager.h"
+#include "common/error.h"
+#include "common/file.h"
+#include "common/system.h"
+
+#include "cryomni3d/versailles/engine.h"
+
+namespace CryOmni3D {
+namespace Versailles {
+
+const char *CryOmni3DEngine_Versailles::kMusicFiles[8][8] = {
+	{ "1amb", }, // Level 1
+	{ "2amb", "2amb2", "2amb1" }, // Level 2
+	{ "3amb", "3amb1", "3amb2" }, // Level 3
+	{ "4amb", "4amb1" }, // Level 4
+	{ "5amb1", "5amb2" }, // Level 5
+	{ "6amb1", "6amb2", "6amb3", "6amb4" }, // Level 6
+	{ "7amb", }, // Level 7
+	{ "3amb", "3amb1", "3amb2", "2amb", "2amb1", "2amb2", "4amb" }, // Level 8
+};
+
+void CryOmni3DEngine_Versailles::musicUpdate() {
+	if (!_isPlaying || _currentLevel <= 0 ||
+	        _mixer->isSoundTypeMuted(Audio::Mixer::kMusicSoundType) ||
+	        _mixer->getVolumeForSoundType(Audio::Mixer::kMusicSoundType) == 0) {
+		// No music in all of these cases
+		musicStop();
+		return;
+	}
+
+	uint musicId = getMusicId(_currentLevel, _currentPlaceId);
+	const char *musicBName = kMusicFiles[_currentLevel - 1][musicId];
+	assert(musicBName != nullptr);
+
+	// Ensure sound is playing in all cases
+	musicResume();
+
+	if (musicBName == _musicCurrentFile) {
+		// Same file, nothing more to do
+		return;
+	}
+
+	// New file, stop the old one first
+	musicStop();
+
+	Common::Path musicPath(getFilePath(kFileTypeMusic, musicBName));
+
+	Common::File *musicFile = new Common::File();
+	if (!musicFile->open(musicPath)) {
+		warning("Failed to open music file %s/%s", musicBName, musicPath.toString(Common::Path::kNativeSeparator).c_str());
+		delete musicFile;
+		return;
+	}
+
+	Audio::SeekableAudioStream *musicDecoder = Audio::makeWAVStream(musicFile, DisposeAfterUse::YES);
+	// We lost ownership of the musicFile just set it to nullptr and don't use it
+	musicFile = nullptr;
+
+	if (!musicDecoder) {
+		warning("Failed to decode music file %s/%s", musicBName, musicPath.toString(Common::Path::kNativeSeparator).c_str());
+		return;
+	}
+
+	Audio::AudioStream *loopStream = Audio::makeLoopingAudioStream(musicDecoder, 0);
+	// We lost ownership of musicDecoder just set it to nullptr and don't use it
+	musicDecoder = nullptr;
+
+	_mixer->playStream(Audio::Mixer::kMusicSoundType, &_musicHandle, loopStream);
+	_musicCurrentFile = musicBName;
+}
+
+void CryOmni3DEngine_Versailles::musicPause() {
+	_mixer->pauseHandle(_musicHandle, true);
+}
+
+void CryOmni3DEngine_Versailles::musicResume() {
+	_mixer->pauseHandle(_musicHandle, false);
+}
+
+void CryOmni3DEngine_Versailles::musicStop() {
+	// Fade the music first
+	if (_mixer->isSoundHandleActive(_musicHandle)) {
+		// We recreate the real channel volume to decrease this one 2 by 2
+		int musicVol = _mixer->getVolumeForSoundType(Audio::Mixer::kMusicSoundType);
+		byte channelVol = _mixer->getChannelVolume(_musicHandle);
+		int realVolume = (musicVol * channelVol) / Audio::Mixer::kMaxChannelVolume;
+		bool skip = false;
+		while (realVolume > 0 && !skip) {
+			realVolume -= 2;
+			channelVol = CLIP((realVolume * Audio::Mixer::kMaxChannelVolume) / musicVol, 0, 255);
+			_mixer->setChannelVolume(_musicHandle, channelVol);
+			if (pollEvents() && checkKeysPressed(1, Common::KEYCODE_SPACE)) {
+				skip = true;
+			}
+			g_system->delayMillis(10);
+		}
+	}
+	_mixer->stopHandle(_musicHandle);
+	_musicCurrentFile = nullptr;
+}
+
+void CryOmni3DEngine_Versailles::musicSetQuiet(bool quiet) {
+	float newFactor = quiet ? 3.5f : 1.f;
+	if (newFactor != _musicVolumeFactor) {
+		_musicVolumeFactor = newFactor;
+		syncSoundSettings();
+	}
+}
+
+bool CryOmni3DEngine_Versailles::musicWouldChange(uint level, uint placeId) const {
+	uint musicId = getMusicId(level, placeId);
+	const char *musicFile = kMusicFiles[_currentLevel - 1][musicId];
+
+	return musicFile != _musicCurrentFile;
+}
+
+uint CryOmni3DEngine_Versailles::getMusicId(uint level,
+		uint placeId) const {
+	// No need of place state
+	switch (level) {
+	case 1:
+		// Only one music
+		return 0;
+	case 2:
+		switch (placeId) {
+		case 4:
+			return 1;
+		case 10:
+		case 11:
+		case 13:
+			return 2;
+		default:
+			return 0;
+		}
+	case 3:
+		switch (placeId) {
+		case 1:
+		case 2:
+		case 3:
+		case 4:
+			return 2;
+		case 6:
+		case 7:
+		case 8:
+		case 12:
+		case 24:
+			return 1;
+		default:
+			return 0;
+		}
+	case 4:
+		switch (placeId) {
+		case 1:
+		case 2:
+		case 3:
+		case 4:
+			return 1;
+		default:
+			return 0;
+		}
+	case 5:
+		switch (placeId) {
+		case 6:
+		case 7:
+		case 8:
+		case 12:
+		case 26:
+		case 27:
+		case 30:
+		case 31:
+			return 1;
+		default:
+			return 0;
+		}
+	case 6:
+		switch (placeId) {
+		case 1:
+			return 3;
+		case 3:
+		case 4:
+		case 5:
+		case 6:
+		case 8:
+		case 9:
+		case 10:
+		case 11:
+			return 0;
+		case 14:
+		case 16:
+		case 17:
+		case 19:
+		case 20:
+		case 22:
+		case 24:
+		case 26:
+		case 27:
+		case 32:
+		case 34:
+		case 38:
+		case 44:
+			return 2;
+		default:
+			return 1;
+		}
+	case 7:
+		return 0;
+	case 8:
+		switch (placeId) {
+		case 1:
+		case 2:
+		case 3:
+		case 4:
+			return 2;
+		case 6:
+		case 7:
+		case 8:
+			return 1;
+		case 9:
+		case 10:
+		case 11:
+			return 0;
+		case 12:
+			return 1;
+		case 13:
+		case 14:
+		case 15:
+		case 16:
+			return 0;
+		case 24:
+			return 1;
+		case 33:
+		case 34:
+		case 35:
+			return 5;
+		case 36:
+		case 37:
+		case 38:
+		case 39:
+			return 3;
+		case 40:
+			return 4;
+		case 42:
+		case 43:
+		case 44:
+			return 6;
+		default:
+			return 0;
+
+		}
+	default:
+		error("Invalid level %d when choosing music", level);
+	}
+}
+
+} // End of namespace Versailles
+} // End of namespace CryOmni3D