Initial commit

engines/gnap/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 "gnap/sound.h"
+#include "audio/audiostream.h"
+#include "audio/decoders/wave.h"
+
+namespace Gnap {
+
+SoundMan::SoundMan(GnapEngine *vm) : _vm(vm) {
+}
+
+SoundMan::~SoundMan() {
+}
+
+void SoundMan::playSound(int resourceId, bool looping) {
+	SoundItem soundItem;
+	soundItem._resourceId = resourceId;
+
+	SoundResource *soundResource = _vm->_soundCache->get(resourceId);
+	Common::MemoryReadStream *stream = new Common::MemoryReadStream(soundResource->_data, soundResource->_size, DisposeAfterUse::NO);
+	Audio::AudioStream *audioStream = Audio::makeLoopingAudioStream(Audio::makeWAVStream(stream, DisposeAfterUse::YES), looping ? 0 : 1);
+
+	_vm->_mixer->playStream(Audio::Mixer::kPlainSoundType, &soundItem._handle, audioStream);
+
+	_items.push_back(soundItem);
+
+}
+
+void SoundMan::stopSound(int resourceId) {
+	const int index = find(resourceId);
+	if (index < 0)
+		return;
+
+	_vm->_soundCache->release(_items[index]._resourceId);
+	_vm->_mixer->stopHandle(_items[index]._handle);
+	_items.remove_at(index);
+}
+
+void SoundMan::setSoundVolume(int resourceId, int volume) {
+	if (resourceId == -1 || volume < 0 || volume > 100)
+		return;
+
+	const int index = find(resourceId);
+	if (index < 0)
+		return;
+
+	int realVol = volume * 2.55;
+	_vm->_mixer->setChannelVolume(_items[index]._handle, realVol);
+}
+
+bool SoundMan::isSoundPlaying(int resourceId) {
+	const int index = find(resourceId);
+	if (index < 0)
+		return false;
+
+	return _vm->_mixer->isSoundHandleActive(_items[index]._handle);
+}
+
+void SoundMan::stopAll() {
+	for (int index = 0; index < (int)_items.size(); ++index) {
+		_vm->_soundCache->release(_items[index]._resourceId);
+		_vm->_mixer->stopHandle(_items[index]._handle);
+	}
+}
+
+void SoundMan::update() {
+	for (int index = 0; index < (int)_items.size(); ++index)
+		if (!_vm->_mixer->isSoundHandleActive(_items[index]._handle)) {
+			_vm->_soundCache->release(_items[index]._resourceId);
+			_items.remove_at(index);
+			--index;
+		}
+}
+
+int SoundMan::find(int resourceId) {
+	for (int index = 0; index < (int)_items.size(); ++index)
+		if (_items[index]._resourceId == resourceId)
+			return index;
+	return -1;
+}
+
+} // End of namespace Gnap