anim.h

/* 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 3 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, see <http://www.gnu.org/licenses/>.
 *
 */
 
/*
 * This code is based on Labyrinth of Time code with assistance of
 *
 * Copyright (c) 1993 Terra Nova Development
 * Copyright (c) 2004 The Wyrmkeep Entertainment Co.
 *
 */
 
#ifndef LAB_ANIM_H
#define LAB_ANIM_H
 
namespace Lab {
 
class LabEngine;
#define CONTINUOUS      0xFFFF
 
struct DIFFHeader {
    uint16 _width;
    uint16 _height;
    char _fps;
    uint32 _flags;
};
 
class Anim {
private:
    LabEngine *_vm;
 
    uint32 _lastBlockHeader;
    uint16 _numChunks;
    uint32 _delayMicros;
    bool _continuous;
    bool _isPlaying;
    bool _isAnim;
    bool _isPal;
    bool _donePal;
    uint16 _frameNum;
    bool _playOnce;
    Common::File *_diffFile;
    uint32 _diffFileStart;
    uint32 _size;
    bool _stopPlayingEnd;
    uint16 _sampleSpeed;
 
    byte *_outputBuffer;
    DIFFHeader _headerdata;
 
public:
    Anim(LabEngine *vm);
    ~Anim();
 
    char _diffPalette[256 * 3];
    bool _waitForEffect; // Wait for each sound effect to finish before continuing.
    bool _doBlack;       // Black the screen before new picture
    bool _noPalChange;   // Don't change the palette.
    byte *_scrollScreenBuffer;
 
    void setOutputBuffer(byte *memoryBuffer); // nullptr for output to screen
    void readDiff(Common::File *diffFile, bool playOnce, bool onlyDiffData);
    void diffNextFrame(bool onlyDiffData = false);
 
    void stopDiff();
 
    void stopDiffEnd();
 
    uint16 getDIFFHeight();
 
    bool isPlaying() const { return _isPlaying;  }
};
 
} // End of namespace Lab
 
#endif // LAB_ANIM_H