Initial commit

engines/grim/imuse/imuse_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 "engines/grim/debug.h"
+
+#include "engines/grim/imuse/imuse.h"
+#include "engines/grim/imuse/imuse_tables.h"
+
+namespace Grim {
+
+void Imuse::setMusicState(int stateId) {
+	int l, num = -1;
+
+	if (stateId == 0)
+		stateId = 1000;
+
+	for (l = 0; _stateMusicTable[l].soundId != -1; l++) {
+		if (_stateMusicTable[l].soundId == stateId) {
+			num = l;
+			break;
+		}
+	}
+	assert(num != -1);
+
+	Debug::debug(Debug::Sound, "Imuse::setMusicState(): SoundId %d, filename: %s", _stateMusicTable[l].soundId, _stateMusicTable[l].filename);
+
+	if (_curMusicState == num)
+		return;
+
+	if (!_curMusicSeq) {
+		playMusic(&_stateMusicTable[num], num, false);
+	}
+
+	_curMusicState = num;
+}
+
+int Imuse::setMusicSequence(int seqId) {
+	int l, num = -1;
+
+	if (seqId == -1)
+		return _seqMusicTable[_curMusicSeq].soundId;
+
+	if (seqId == 0)
+		seqId = 2000;
+
+	for (l = 0; _seqMusicTable[l].soundId != -1; l++) {
+		if (_seqMusicTable[l].soundId == seqId) {
+			num = l;
+			break;
+		}
+	}
+
+	assert(num != -1);
+
+	Debug::debug(Debug::Sound, "Imuse::setMusicSequence(): SoundId %d, filename: %s", _seqMusicTable[l].soundId, _seqMusicTable[l].filename);
+
+	if (_curMusicSeq == num)
+		return _seqMusicTable[_curMusicSeq].soundId;
+
+	if (num) {
+		playMusic(&_seqMusicTable[num], 0, true);
+	} else {
+		playMusic(&_stateMusicTable[_curMusicState], _curMusicState, true);
+		num = 0;
+	}
+
+	_curMusicSeq = num;
+	return _seqMusicTable[_curMusicSeq].soundId;
+}
+
+void Imuse::playMusic(const ImuseTable *table, int atribPos, bool sequence) {
+	int hookId = 0;
+
+	if (atribPos) {
+		if (table->atribPos)
+			atribPos = table->atribPos;
+		hookId = _attributes[atribPos];
+		if (table->hookId) {
+			if (hookId && table->hookId > 1) {
+				_attributes[atribPos] = 2;
+			} else {
+				_attributes[atribPos] = hookId + 1;
+				if (table->hookId < hookId + 1)
+					_attributes[atribPos] = 1;
+			}
+		}
+	}
+	if (hookId == 0)
+		hookId = 100;
+
+	if (table->opcode == 0) {
+		fadeOutMusic(120);
+		return;
+	}
+
+	if (table->opcode == 2 || table->opcode == 3) {
+		if (table->filename[0] == 0) {
+			fadeOutMusic(60);
+			return;
+		}
+		char *soundName = getCurMusicSoundName();
+		int pan;
+
+		if (table->pan == 0)
+			pan = 64;
+		else
+			pan = table->pan;
+		if (!soundName) {
+			startMusic(table->filename, hookId, 0, pan);
+			setVolume(table->filename, 0);
+			setFadeVolume(table->filename, table->volume, table->fadeOut60TicksDelay);
+			return;
+		}
+		int old_pan = getCurMusicPan();
+		int old_vol = getCurMusicVol();
+		if (old_pan == -1)
+			old_pan = 64;
+		if (old_vol == -1)
+			old_vol = 127;
+
+		if (table->opcode == 2) {
+			fadeOutMusic(table->fadeOut60TicksDelay);
+			startMusic(table->filename, hookId, table->volume, pan);
+			setVolume(table->filename, 0);
+			setFadeVolume(table->filename, table->volume, table->fadeOut60TicksDelay);
+			setFadePan(table->filename, pan, table->fadeOut60TicksDelay);
+			return;
+		}
+		if (strcmp(soundName, table->filename) == 0) {
+			setFadeVolume(soundName, table->volume, table->fadeOut60TicksDelay);
+			setFadePan(soundName, pan, table->fadeOut60TicksDelay);
+			return;
+		}
+
+		if (!sequence && table->atribPos && table->atribPos == _stateMusicTable[_curMusicState].atribPos) {
+			fadeOutMusicAndStartNew(table->fadeOut60TicksDelay, table->filename, hookId, old_vol, old_pan);
+			setVolume(table->filename, 0);
+			setFadeVolume(table->filename, table->volume, table->fadeOut60TicksDelay);
+			setFadePan(table->filename, pan, table->fadeOut60TicksDelay);
+		} else {
+			fadeOutMusic(table->fadeOut60TicksDelay);
+			startMusic(table->filename, hookId, table->volume, pan);
+			setVolume(table->filename, 0);
+			setFadeVolume(table->filename, table->volume, table->fadeOut60TicksDelay);
+		}
+	}
+}
+
+} // end of namespace Grim