mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-22 01:39:57 +00:00
131 lines
3.3 KiB
C++
131 lines
3.3 KiB
C++
/* 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.
|
|
*
|
|
* Additional copyright for this file:
|
|
* Copyright (C) 1995-1997 Presto Studios, Inc.
|
|
*
|
|
* 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 PEGASUS_FADER_H
|
|
#define PEGASUS_FADER_H
|
|
|
|
#include "pegasus/elements.h"
|
|
#include "pegasus/timers.h"
|
|
|
|
namespace Pegasus {
|
|
|
|
class Fader;
|
|
|
|
class FaderMoveSpec {
|
|
friend class Fader;
|
|
public:
|
|
FaderMoveSpec() {
|
|
_faderScale = kDefaultTimeScale;
|
|
_numKnots = 0;
|
|
}
|
|
|
|
FaderMoveSpec(const TimeScale scale) {
|
|
_faderScale = scale;
|
|
_numKnots = 0;
|
|
}
|
|
|
|
void setFaderScale(const TimeScale scale) { _faderScale = scale; }
|
|
TimeScale getFaderScale() const { return _faderScale; }
|
|
|
|
void makeOneKnotFaderSpec(const int32);
|
|
void makeTwoKnotFaderSpec(const TimeScale, const TimeValue, const int32, const TimeValue, const int32);
|
|
|
|
void insertFaderKnot(const TimeValue, const int32);
|
|
|
|
uint32 getNumKnots() const { return _numKnots; }
|
|
TimeValue getNthKnotTime(const uint32 index) const { return _knots[index].knotTime; }
|
|
int32 getNthKnotValue(const uint32 index) const { return _knots[index].knotValue; }
|
|
|
|
protected:
|
|
struct FaderKnot {
|
|
TimeValue knotTime;
|
|
int32 knotValue;
|
|
};
|
|
|
|
TimeScale _faderScale;
|
|
uint32 _numKnots;
|
|
|
|
static const uint32 kMaxFaderKnots = 20;
|
|
FaderKnot _knots[kMaxFaderKnots];
|
|
};
|
|
|
|
class Fader : public IdlerTimeBase {
|
|
public:
|
|
Fader();
|
|
virtual ~Fader() {}
|
|
|
|
virtual void setFaderValue(const int32);
|
|
int32 getFaderValue() const { return _currentValue; }
|
|
virtual void startFader(const FaderMoveSpec &);
|
|
virtual void startFaderSync(const FaderMoveSpec &);
|
|
virtual void loopFader(const FaderMoveSpec &);
|
|
virtual void stopFader();
|
|
virtual bool isFading() { return isRunning(); }
|
|
|
|
void pauseFader();
|
|
void continueFader();
|
|
|
|
void getCurrentFaderMove(FaderMoveSpec &spec) { spec = _currentFaderMove; }
|
|
|
|
protected:
|
|
bool initFaderMove(const FaderMoveSpec &);
|
|
virtual void timeChanged(const TimeValue);
|
|
|
|
int32 _currentValue;
|
|
FaderMoveSpec _currentFaderMove;
|
|
};
|
|
|
|
class FaderAnimation : public DisplayElement, public Fader {
|
|
public:
|
|
FaderAnimation(const DisplayElementID id) : DisplayElement(id) {}
|
|
virtual ~FaderAnimation() {}
|
|
|
|
void setFaderValue(const int32);
|
|
};
|
|
|
|
class Sound;
|
|
|
|
class SoundFader : public Fader {
|
|
friend class Sound;
|
|
public:
|
|
SoundFader();
|
|
virtual ~SoundFader() {}
|
|
|
|
void setFaderValue(const int32);
|
|
|
|
void setMasterVolume(const uint16);
|
|
uint16 getMasterVolume() const { return _masterVolume; }
|
|
|
|
protected:
|
|
void attachSound(Sound *);
|
|
|
|
Sound *_sound;
|
|
uint16 _masterVolume;
|
|
};
|
|
|
|
} // End of namespace Pegasus
|
|
|
|
#endif
|