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https://github.com/libretro/scummvm.git
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140 lines
3.4 KiB
C++
140 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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*
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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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*
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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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#ifndef TITANIC_WAVE_FILE_H
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#define TITANIC_WAVE_FILE_H
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#include "audio/audiostream.h"
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#include "audio/mixer.h"
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#include "titanic/sound/audio_buffer.h"
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#include "titanic/support/string.h"
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#include "titanic/true_talk/dialogue_file.h"
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namespace Titanic {
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enum LoadMode { LOADMODE_AUDIO_BUFFER = 1, LOADMODE_SCUMMVM = 2 };
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class CWaveFile {
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private:
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Audio::Mixer *_mixer;
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byte *_waveData;
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int _waveSize;
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int _dataSize;
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int _headerSize;
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int _rate;
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byte _flags;
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uint16 _wavType;
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Audio::SeekableAudioStream *_pendingAudioStream;
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private:
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/**
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* Handles setup of fields shared by the constructors
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*/
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void setup();
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/**
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* Gets passed the raw data for the wave file
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*/
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void load(byte *data, uint dataSize);
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/**
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* Returns a ScummVM Audio Stream for playback purposes
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*/
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Audio::SeekableAudioStream *createAudioStream();
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public:
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Audio::Mixer::SoundType _soundType;
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LoadMode _loadMode;
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CAudioBuffer *_audioBuffer;
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DisposeAfterUse::Flag _disposeAudioBuffer;
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int _channel;
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public:
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CWaveFile(Audio::Mixer *mixer);
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~CWaveFile();
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/**
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* Returns the duration of the wave file
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* @returns Total ticks. Not really sure how ticks
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* map to real time
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*/
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uint getDurationTicks() const;
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/**
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* Return the size of the wave file
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*/
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uint size() const { return _dataSize; }
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/**
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* Tries to load the specified wave file sound
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*/
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bool loadSound(const CString &name);
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/**
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* Tries to load speech from a specified dialogue file
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*/
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bool loadSpeech(CDialogueFile *dialogueFile, int speechIndex);
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/**
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* Tries to load the specified music wave file
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*/
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bool loadMusic(const CString &name);
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/**
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* Tries to load the specified audio buffer
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*/
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bool loadMusic(CAudioBuffer *buffer, DisposeAfterUse::Flag disposeAfterUse);
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/**
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* Returns true if the wave file has data loaded
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*/
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bool isLoaded() const {
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return _waveData != nullptr || _pendingAudioStream != nullptr;
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}
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/**
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* Return the frequency of the loaded wave file
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*/
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uint getFrequency() const { return _rate; }
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/**
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* Lock sound data for access
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*/
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const int16 *lock();
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/**
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* Unlock sound data after a prior call to lock
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*/
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void unlock(const int16 *ptr);
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/**
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* Plays the wave file
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* @param numLoops Number of times to loop. 0 for none,
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* -1 for infinite, and >0 for specified number of times
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* @param volume Volume to play at
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* @returns Audio handle for started sound
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*/
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Audio::SoundHandle play(int numLoops, byte volume);
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};
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} // End of namespace Titanic
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#endif /* TITANIC_WAVE_FILE_H */
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