mirror of
https://github.com/libretro/scummvm.git
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151 lines
3.9 KiB
C++
Executable File
151 lines
3.9 KiB
C++
Executable File
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* Additional copyright for this file:
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* Copyright (C) 1995-1997 Presto Studios, Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include "audio/audiostream.h"
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#include "audio/decoders/aiff.h"
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#include "audio/decoders/quicktime.h"
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#include "common/file.h"
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#include "common/system.h"
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#include "pegasus/fader.h"
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#include "pegasus/sound.h"
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namespace Pegasus {
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Sound::Sound() {
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_stream = 0;
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_volume = 0xFF;
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_fader = 0;
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}
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Sound::~Sound() {
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disposeSound();
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}
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void Sound::disposeSound() {
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stopSound();
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delete _stream; _stream = 0;
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}
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void Sound::initFromAIFFFile(const Common::String &fileName) {
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disposeSound();
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Common::File *file = new Common::File();
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if (!file->open(fileName)) {
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delete file;
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return;
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}
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_stream = Audio::makeAIFFStream(file, DisposeAfterUse::YES);
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}
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void Sound::initFromQuickTime(const Common::String &fileName) {
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disposeSound();
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_stream = Audio::makeQuickTimeStream(fileName);
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}
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void Sound::attachFader(SoundFader *fader) {
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if (_fader)
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_fader->attachSound(0);
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_fader = fader;
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if (_fader)
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_fader->attachSound(this);
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}
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void Sound::playSound() {
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if (!isSoundLoaded())
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return;
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stopSound();
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if (_fader)
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setVolume(_fader->getFaderValue());
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g_system->getMixer()->playStream(Audio::Mixer::kPlainSoundType, &_handle, _stream, -1, _volume, 0, DisposeAfterUse::NO);
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}
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void Sound::loopSound() {
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if (!isSoundLoaded())
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return;
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stopSound();
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// Create a looping stream
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Audio::AudioStream *loopStream = new Audio::LoopingAudioStream(_stream, 0, DisposeAfterUse::NO);
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// Assume that if there is a fader, we're going to fade the sound in.
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if (_fader)
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setVolume(0);
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g_system->getMixer()->playStream(Audio::Mixer::kPlainSoundType, &_handle, loopStream, -1, _volume, 0, DisposeAfterUse::YES);
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}
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void Sound::playSoundSegment(uint32 start, uint32 end) {
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if (!isSoundLoaded())
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return;
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stopSound();
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Audio::AudioStream *subStream = new Audio::SubSeekableAudioStream(_stream, Audio::Timestamp(0, start, 600), Audio::Timestamp(0, end, 600), DisposeAfterUse::NO);
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g_system->getMixer()->playStream(Audio::Mixer::kPlainSoundType, &_handle, subStream, -1, _volume, 0, DisposeAfterUse::YES);
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}
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void Sound::loopSoundSegment(uint32 start, uint32 end) {
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if (!isSoundLoaded())
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return;
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stopSound();
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Audio::AudioStream *subLoopStream = new Audio::SubLoopingAudioStream(_stream, 0, Audio::Timestamp(0, start, 600), Audio::Timestamp(0, end, 600), DisposeAfterUse::NO);
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g_system->getMixer()->playStream(Audio::Mixer::kPlainSoundType, &_handle, subLoopStream, -1, _volume, 0, DisposeAfterUse::YES);
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}
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void Sound::stopSound() {
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g_system->getMixer()->stopHandle(_handle);
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}
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void Sound::setVolume(const uint16 volume) {
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// Clipping the volume to [0x00, 0xFF] instead of Apple's [0, 0x100]
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// We store the volume in case SetVolume is called before the sound starts
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_volume = (volume == 0x100) ? 0xFF : volume;
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g_system->getMixer()->setChannelVolume(_handle, _volume);
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}
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bool Sound::isPlaying() {
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return isSoundLoaded() && g_system->getMixer()->isSoundHandleActive(_handle);
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}
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bool Sound::isSoundLoaded() const {
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return _stream != 0;
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}
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} // End of namespace Pegasus
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