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scxtrack.cpp

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00001 /* ResidualVM - A 3D game interpreter
00002  *
00003  * ResidualVM is the legal property of its developers, whose names
00004  * are too numerous to list here. Please refer to the COPYRIGHT
00005  * file distributed with this source distribution.
00006  *
00007  * This program is free software; you can redistribute it and/or
00008  * modify it under the terms of the GNU General Public License
00009  * as published by the Free Software Foundation; either version 2
00010  * of the License, or (at your option) any later version.
00011  *
00012  * This program is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU General Public License
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00019  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
00020  *
00021  */
00022 
00023 #include "common/mutex.h"
00024 #include "common/textconsole.h"
00025 #include "audio/mixer.h"
00026 #include "audio/audiostream.h"
00027 #include "engines/grim/debug.h"
00028 #include "engines/grim/resource.h"
00029 #include "engines/grim/emi/sound/codecs/scx.h"
00030 #include "engines/grim/emi/sound/scxtrack.h"
00031 
00032 namespace Grim {
00033 
00034 SCXTrack::SCXTrack(Audio::Mixer::SoundType soundType) {
00035     _disposeAfterPlaying = DisposeAfterUse::NO;
00036     _soundType = soundType;
00037     _looping = false;
00038 }
00039 
00040 SCXTrack::~SCXTrack() {
00041     stop();
00042     if (_handle) {
00043         g_system->getMixer()->stopHandle(*_handle);
00044         delete _handle;
00045     }
00046 }
00047 
00048 bool SCXTrack::openSound(const Common::String &filename, const Common::String &soundName, const Audio::Timestamp *start) {
00049     Common::SeekableReadStream *file = g_resourceloader->openNewStreamFile(filename);
00050     if (!file) {
00051         Debug::debug(Debug::Sound, "Stream for %s not open", soundName.c_str());
00052         return false;
00053     }
00054     _soundName = soundName;
00055     Audio::RewindableAudioStream *scxStream = makeSCXStream(file, start, DisposeAfterUse::YES);
00056     _stream = scxStream;
00057     _handle = new Audio::SoundHandle();
00058     return true;
00059 }
00060 
00061 bool SCXTrack::isPlaying() {
00062     if (!_handle)
00063         return false;
00064 
00065     return g_system->getMixer()->isSoundHandleActive(*_handle);
00066 }
00067 
00068 Audio::Timestamp SCXTrack::getPos() {
00069     if (!_stream || _looping)
00070         return Audio::Timestamp(0);
00071     return dynamic_cast<SCXStream*>(_stream)->getPos();
00072 }
00073 
00074 bool SCXTrack::play() {
00075     if (_stream) {
00076         Audio::RewindableAudioStream *stream = dynamic_cast<Audio::RewindableAudioStream *>(_stream);
00077         if (!_looping) {
00078             stream->rewind();
00079         }
00080         return SoundTrack::play();
00081     }
00082     return false;
00083 }
00084 
00085 void SCXTrack::setLooping(bool looping) {
00086     if (_looping == looping)
00087         return;
00088     _looping = looping;
00089     if (looping && _stream) {
00090         _stream = Audio::makeLoopingAudioStream(dynamic_cast<Audio::RewindableAudioStream *>(_stream), 0);
00091     }
00092 }
00093 
00094 } // end of namespace Grim


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