scummvm/engines/saga/sound.h
Matthew Hoops d876dddd45 SAGA: Rework the way audio is buffered
The streams that are created are now used directly instead of SAGA creating its own RawStream after decoding it. In addition, this should fix ADPCM-compressed sounds on big endian systems (as the code was treating the result of readBuffer() to always be LE, whereas it's actual native endian).

I've also clarified the bugfix to bug #1256701. It only applies to 16-bit PCM data and the size for other data is no longer truncated too ;)
2011-12-24 11:09:54 -05:00

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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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
// Sound class
#ifndef SAGA_SOUND_H
#define SAGA_SOUND_H
#include "common/file.h"
#include "audio/mixer.h"
#include "audio/timestamp.h"
namespace Audio {
class RewindableAudioStream;
}
namespace Saga {
#define SOUND_HANDLES 10
enum SOUND_FLAGS {
SOUND_LOOP = 1
};
struct SoundBuffer {
Audio::RewindableAudioStream *stream;
Audio::Timestamp streamLength;
};
enum sndHandleType {
kFreeHandle,
kEffectHandle,
kVoiceHandle
};
struct SndHandle {
Audio::SoundHandle handle;
sndHandleType type;
int resId;
};
class Sound {
public:
Sound(SagaEngine *vm, Audio::Mixer *mixer);
~Sound();
void playSound(SoundBuffer &buffer, int volume, bool loop, int resId);
void pauseSound();
void resumeSound();
void stopSound();
void playVoice(SoundBuffer &buffer);
void pauseVoice();
void resumeVoice();
void stopVoice();
void stopAll();
void setVolume();
private:
void playSoundBuffer(Audio::SoundHandle *handle, const SoundBuffer &buffer, int volume,
sndHandleType handleType, bool loop);
SndHandle *getHandle();
SagaEngine *_vm;
Audio::Mixer *_mixer;
SndHandle _handles[SOUND_HANDLES];
};
} // End of namespace Saga
#endif