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engines/illusions/resources/midiresource.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 "illusions/illusions.h"
+#include "illusions/resources/midiresource.h"
+
+namespace Illusions {
+
+// MidiGroupResourceLoader
+
+void MidiGroupResourceLoader::load(Resource *resource) {
+	debug(1, "MidiGroupResourceLoader::load() Loading midi group %08X...", resource->_resId);
+	MidiGroupInstance *midiGroupInstance = new MidiGroupInstance(_vm);
+	midiGroupInstance->load(resource);
+	resource->_instance = midiGroupInstance;
+}
+
+bool MidiGroupResourceLoader::isFlag(int flag) {
+	return
+		flag == kRlfLoadFile/* ||
+		flag == kRlfFreeDataAfterLoad*/;
+}
+
+// MidiMusic
+
+void MidiMusic::load(Common::SeekableReadStream &stream) {
+	_musicId = stream.readUint32LE();
+	_looping = stream.readUint16LE() != 0;
+	stream.skip(2 + 32 + 4); // Skip unused/unknown values
+	debug(1, "MidiMusic::load() _musicId: %08X; _looping: %d", _musicId, _looping);
+}
+
+// MidiGroupResource
+
+MidiGroupResource::MidiGroupResource()
+	: _midiMusicCount(0), _midiMusic(nullptr) {
+}
+
+MidiGroupResource::~MidiGroupResource() {
+	delete[] _midiMusic;
+}
+
+void MidiGroupResource::load(byte *data, uint32 dataSize) {
+	Common::MemoryReadStream stream(data, dataSize, DisposeAfterUse::NO);
+
+	stream.skip(4);
+	_midiMusicCount = stream.readUint16LE();
+	stream.skip(2);
+	uint32 midiMusicOffs = stream.readUint32LE();
+	debug("_midiMusicCount: %d; midiMusicOffs: %08X", _midiMusicCount, midiMusicOffs);
+	_midiMusic = new MidiMusic[_midiMusicCount];
+	stream.seek(midiMusicOffs);
+	for (uint i = 0; i < _midiMusicCount; ++i) {
+		_midiMusic[i].load(stream);
+	}
+
+}
+
+// MidiGroupInstance
+
+MidiGroupInstance::MidiGroupInstance(IllusionsEngine *vm)
+	: _vm(vm), _midiGroupResource(nullptr) {
+}
+
+void MidiGroupInstance::load(Resource *resource) {
+	_midiGroupResource = new MidiGroupResource();
+	_midiGroupResource->load(resource->_data, resource->_dataSize);
+	for (uint i = 0; i < _midiGroupResource->_midiMusicCount; ++i) {
+		// TODO
+		// SoundEffect *soundEffect = &_soundGroupResource->_soundEffects[i];
+		// _vm->_soundMan->loadSound(soundEffect->_soundEffectId, resource->_resId, soundEffect->_looping);
+	}
+	_resId = resource->_resId;
+}
+
+void MidiGroupInstance::unload() {
+	// _vm->_soundMan->unloadSounds(_resId);
+	delete _midiGroupResource;
+}
+
+} // End of namespace Illusions