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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.
*
*/
#ifndef MOHAWK_SOUND_H
#define MOHAWK_SOUND_H
#include "common/scummsys.h"
#include "common/str.h"
#include "audio/audiostream.h"
#include "audio/mixer.h"
#include "audio/decoders/adpcm.h"
#include "mohawk/mohawk.h"
#include "mohawk/resource.h"
class MidiDriver;
class MidiParser;
namespace Mohawk {
#define MAX_CHANNELS 2 // Can there be more than 2?
struct SLSTRecord {
uint16 index;
uint16 sound_count;
uint16 *sound_ids;
uint16 fade_flags;
uint16 loop;
uint16 global_volume;
uint16 u0;
uint16 u1;
uint16 *volumes;
int16 *balances;
uint16 *u2;
};
enum SndHandleType {
kFreeHandle,
kUsedHandle
};
struct SndHandle {
Audio::SoundHandle handle;
SndHandleType type;
uint samplesPerSecond;
uint16 id;
};
struct SLSTSndHandle {
Audio::SoundHandle *handle;
uint16 id;
};
struct ADPCMStatus { // Holds ADPCM status data, but is irrelevant for us.
uint32 size;
uint16 itemCount;
uint16 channels;
struct StatusItem {
uint32 sampleFrame;
struct {
int16 last;
uint16 stepIndex;
} channelStatus[MAX_CHANNELS];
} *statusItems;
};
struct CueListPoint {
uint32 sampleFrame;
Common::String name;
};
struct CueList {
uint32 size;
uint16 pointCount;
Common::Array<CueListPoint> points;
};
enum {
kCodecRaw = 0,
kCodecADPCM = 1,
kCodecMPEG2 = 2
};
struct DataChunk {
uint16 sampleRate;
uint32 sampleCount;
byte bitsPerSample;
byte channels;
uint16 encoding;
uint16 loopCount; // 0 == no looping, 0xFFFF == infinite loop
uint32 loopStart;
uint32 loopEnd;
Common::SeekableReadStream *audioData;
};
class MohawkEngine;
class Sound {
public:
Sound(MohawkEngine *vm);
~Sound();
// Generic sound functions
Audio::SoundHandle *playSound(uint16 id, byte volume = Audio::Mixer::kMaxChannelVolume, bool loop = false, CueList *cueList = NULL);
void playSoundBlocking(uint16 id, byte volume = Audio::Mixer::kMaxChannelVolume);
void playMidi(uint16 id);
void stopMidi();
void stopSound();
void stopSound(uint16 id);
void pauseSound();
void resumeSound();
bool isPlaying(uint16 id);
bool isPlaying();
uint getNumSamplesPlayed(uint16 id);
// Myst-specific sound functions
Audio::SoundHandle *replaceSoundMyst(uint16 id, byte volume = Audio::Mixer::kMaxChannelVolume, bool loop = false);
Audio::SoundHandle *replaceBackgroundMyst(uint16 id, uint16 volume = 0xFFFF);
void pauseBackgroundMyst();
void resumeBackgroundMyst();
void stopBackgroundMyst();
void changeBackgroundVolumeMyst(uint16 vol);
// Riven-specific sound functions
void playSLST(uint16 index, uint16 card);
void playSLST(SLSTRecord slstRecord);
void pauseSLST();
void resumeSLST();
void stopAllSLST(bool fade = false);
static byte convertRivenVolume(uint16 volume);
private:
MohawkEngine *_vm;
MidiDriver *_midiDriver;
MidiParser *_midiParser;
byte *_midiData;
static Audio::AudioStream *makeMohawkWaveStream(Common::SeekableReadStream *stream, CueList *cueList = NULL);
static Audio::AudioStream *makeLivingBooksWaveStream_v1(Common::SeekableReadStream *stream);
void initMidi();
Common::Array<SndHandle> _handles;
SndHandle *getHandle();
Audio::AudioStream *makeAudioStream(uint16 id, CueList *cueList = NULL);
uint16 convertMystID(uint16 id);
// Myst-specific
SndHandle _mystBackgroundSound;
// Riven-specific
void playSLSTSound(uint16 index, bool fade, bool loop, uint16 volume, int16 balance);
void stopSLSTSound(uint16 id, bool fade);
Common::Array<SLSTSndHandle> _currentSLSTSounds;
};
} // End of namespace Mohawk
#endif
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