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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.
*
* $URL$
* $Id$
*
*/
// Music class
#ifndef TINSEL_MUSIC_H
#define TINSEL_MUSIC_H
#include "sound/mididrv.h"
#include "sound/midiparser.h"
#include "sound/audiostream.h"
#include "sound/mixer.h"
#include "common/mutex.h"
namespace Tinsel {
bool PlayMidiSequence( // Plays the specified MIDI sequence through the sound driver
uint32 dwFileOffset, // handle of MIDI sequence data
bool bLoop); // Whether to loop the sequence
bool MidiPlaying(); // Returns TRUE if a Midi tune is currently playing
bool StopMidi(); // Stops any currently playing midi
void SetMidiVolume( // Sets the volume of the MIDI music. Returns the old volume
int vol); // new volume - 0..MAXMIDIVOL
int GetMidiVolume();
void OpenMidiFiles();
void DeleteMidiBuffer();
void CurrentMidiFacts(SCNHANDLE *pMidi, bool *pLoop);
void RestoreMidiFacts(SCNHANDLE Midi, bool Loop);
int GetTrackNumber(SCNHANDLE hMidi);
SCNHANDLE GetTrackOffset(int trackNumber);
void dumpMusic();
class MidiMusicPlayer : public MidiDriver {
public:
MidiMusicPlayer(MidiDriver *driver);
~MidiMusicPlayer();
bool isPlaying() { return _isPlaying; }
void setPlaying(bool playing) { _isPlaying = playing; }
void setVolume(int volume);
int getVolume() { return _masterVolume; }
void playXMIDI(byte *midiData, uint32 size, bool loop);
void stop();
void pause();
void resume();
void setLoop(bool loop) { _looping = loop; }
//MidiDriver interface implementation
int open();
void close();
void send(uint32 b);
void metaEvent(byte type, byte *data, uint16 length);
void setTimerCallback(void *timerParam, void (*timerProc)(void *)) { }
// The original sets the "sequence timing" to 109 Hz, whatever that
// means. The default is 120.
uint32 getBaseTempo() { return _driver ? (109 * _driver->getBaseTempo()) / 120 : 0; }
//Channel allocation functions
MidiChannel *allocateChannel() { return 0; }
MidiChannel *getPercussionChannel() { return 0; }
MidiParser *_parser;
Common::Mutex _mutex;
protected:
static void onTimer(void *data);
MidiChannel *_channel[16];
MidiDriver *_driver;
MidiParser *_xmidiParser;
byte _channelVolume[16];
bool _isPlaying;
bool _looping;
byte _masterVolume;
};
class PCMMusicPlayer : public Audio::AudioStream {
public:
PCMMusicPlayer();
~PCMMusicPlayer();
bool isPlaying() const;
bool isDimmed() const;
void getTunePlaying(void *voidPtr, int length);
void restoreThatTune(void *voidPtr);
void setMusicSceneDetails(SCNHANDLE hScript, SCNHANDLE hSegment, const char *fileName);
void setVolume(int volume);
void startPlay(int id);
void stopPlay();
bool getMusicTinselDimmed() const;
void dim(bool bTinselDim);
void unDim(bool bTinselUnDim);
void dimIteration();
void startFadeOut(int ticks);
void fadeOutIteration();
int readBuffer(int16 *buffer, const int numSamples);
bool isStereo() const { return false; }
bool endOfData() const { return _end; }
bool endOfStream() const { return false; }
int getRate() const { return 22050; }
protected:
enum State {
S_IDLE,
S_NEW,
S_MID,
S_END1,
S_END2,
S_END3,
S_NEXT,
S_STOP
};
struct MusicSegment {
uint32 numChannels;
uint32 bitsPerSec;
uint32 bitsPerSample;
uint32 sampleLength;
uint32 sampleOffset;
};
Audio::SoundHandle _handle;
Audio::AudioStream *_curChunk;
Common::Mutex _mutex;
bool _end;
int _silenceSamples;
State _state, _mState;
bool _forcePlay;
int32 _scriptNum;
int32 _scriptIndex;
SCNHANDLE _hScript;
SCNHANDLE _hSegment;
char *_fileName;
uint8 _volume;
bool _dimmed;
bool _dimmedTinsel;
uint8 _dimmedVolume;
int _dimIteration;
int _dimPosition;
uint8 _fadeOutVolume;
int _fadeOutIteration;
void play();
void stop();
void setVol(uint8 volume);
bool getNextChunk();
};
} // End of namespace Tinsel
#endif
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