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https://github.com/libretro/scummvm.git
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141 lines
3.4 KiB
C++
141 lines
3.4 KiB
C++
/* 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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* 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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* $URL$
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* $Id$
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*
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*/
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#ifndef DRACI_SOUND_H
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#define DRACI_SOUND_H
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#include "common/str.h"
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#include "common/file.h"
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#include "sound/mixer.h"
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namespace Draci {
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/**
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* Represents individual files inside the archive.
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*/
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struct SoundSample {
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uint _offset;
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uint _length;
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uint _frequency;
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byte* _data;
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void close() {
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delete[] _data;
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_data = NULL;
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}
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};
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class SoundArchive {
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public:
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SoundArchive(const Common::String &path, uint defaultFreq) :
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_path(), _samples(NULL), _sampleCount(0), _defaultFreq(defaultFreq), _opened(false), _f(NULL) {
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openArchive(path);
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}
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~SoundArchive() { closeArchive(); }
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void closeArchive();
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void openArchive(const Common::String &path);
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uint size() const { return _sampleCount; }
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/**
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* Checks whether there is an archive opened. Should be called before reading
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* from the archive to check whether openArchive() succeeded.
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*/
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bool isOpen() const { return _opened; }
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void clearCache();
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SoundSample *getSample(int i, uint freq);
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private:
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Common::String _path; ///< Path to file
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SoundSample *_samples; ///< Internal array of files
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uint _sampleCount; ///< Number of files in archive
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uint _defaultFreq; ///< The default sampling frequency of the archived samples
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bool _opened; ///< True if the archive is opened, false otherwise
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Common::File *_f; ///< Opened file
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};
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#define SOUND_HANDLES 10
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enum sndHandleType {
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kFreeHandle,
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kEffectHandle,
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kVoiceHandle
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};
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struct SndHandle {
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Audio::SoundHandle handle;
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sndHandleType type;
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};
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// Taken from engines/saga/sound.h and simplified (in particular, removed
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// decompression until we support compressed files too).
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class Sound {
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public:
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Sound(Audio::Mixer *mixer);
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~Sound() {}
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void playSound(const SoundSample *buffer, int volume, bool loop);
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void pauseSound();
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void resumeSound();
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void stopSound();
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bool isMutedSound() const { return _muteSound; }
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void playVoice(const SoundSample *buffer);
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void pauseVoice();
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void resumeVoice();
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void stopVoice();
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bool isMutedVoice() const { return _muteVoice; }
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void stopAll() { stopVoice(); stopSound(); }
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void setVolume();
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bool showSubtitles() const { return _showSubtitles; }
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int talkSpeed() const { return _talkSpeed; }
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private:
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void playSoundBuffer(Audio::SoundHandle *handle, const SoundSample &buffer, int volume,
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sndHandleType handleType, bool loop);
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SndHandle *getHandle();
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Audio::Mixer *_mixer;
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bool _muteSound;
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bool _muteVoice;
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bool _showSubtitles;
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int _talkSpeed;
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SndHandle _handles[SOUND_HANDLES];
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};
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} // End of namespace Draci
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#endif // DRACI_SOUND_H
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