video.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/>.
 *
 */
 
#ifndef ACCESS_VIDEO_H
#define ACCESS_VIDEO_H
 
#include "common/scummsys.h"
#include "common/memstream.h"
#include "audio/audiostream.h"
#include "audio/mixer.h"
 
#include "access/data.h"
#include "access/asurface.h"
#include "access/files.h"
 
namespace Access {
 
enum VideoFlags { VIDEOFLAG_NONE = 0, VIDEOFLAG_BG = 1 };
 
class VideoPlayer : public Manager {
public:
    VideoPlayer(AccessEngine *vm);
    virtual ~VideoPlayer();
 
    void setVideo(BaseSurface *vidSurface, const Common::Point &pt, const FileIdent &videoFile, int rate);
    void setVideo(BaseSurface *vidSurface, const Common::Point &pt, const Common::Path &filename, int rate);
 
    virtual void playVideo() = 0;
 
    virtual void copyVideo() = 0;
    virtual void closeVideo();
 
    void playToEnd();
 
    virtual int getWidth() = 0;
 
    virtual int getHeight() = 0;
 
protected:
    virtual void setVideo(const Common::Point &pt) = 0;
 
    virtual void setRate(int rate) = 0;
 
    virtual void delayToNextFrame() = 0;
 
    Resource *_videoData;
    BaseSurface *_vidSurface;
 
public:
    int _videoFrame;
    bool _soundFlag;
    int _soundFrame;
    bool _videoEnd;
};
 
 
class VideoPlayer_v1 : public VideoPlayer {
    struct VideoHeader {
        int _frameCount;
        int _width, _height;
        VideoFlags _flags;
    };
private:
    VideoHeader _header;
    byte *_startCoord;
    int _frameCount;
    int _xCount;
    int _scanCount;
    int _frameSize;
    Common::Rect _videoBounds;
    int _rate;
 
    void getFrame();
protected:
    void setVideo(const Common::Point &pt) override;
 
    void setRate(int rate) override;
 
    void delayToNextFrame() override;
 
public:
    VideoPlayer_v1(AccessEngine *vm);
 
    ~VideoPlayer_v1();
 
    void playVideo() override;
 
    void copyVideo() override;
 
    int getWidth() override { return _header._width; }
 
    int getHeight() override { return _header._height; }
 
};
 
class VideoPlayer_v2 : public VideoPlayer {
    struct VideoHeader {
        uint32 _id;
        byte _version;
        int _frameCount;
        int _width, _height;
        int _frameIncr;
        uint16 _unk;
        VideoFlags _flags;
    };
private:
    VideoHeader _header;
    BaseSurface *_frame;
    uint32 _nextFrameTime;
    bool _setPal;
    bool _drawBorder;
    uint32 _startMs;
    uint32 _delayTotal;
 
    Audio::QueuingAudioStream *_audioStream;
    Audio::SoundHandle _audioStreamHandle;
    Graphics::Palette _pal;
 
    void handleStraitChunk();
    void handlePaletteChunk();
    void handleFrameChunk(bool delta, bool skipLines);
    void handleSoundChunk(bool init);
 
    void calcNextFrameTime(int delay);
 
protected:
    void setVideo(const Common::Point &pt) override;
 
    void setRate(int rate) override { };
 
    void delayToNextFrame() override;
public:
    VideoPlayer_v2(AccessEngine *vm, bool setPal = false);
 
    ~VideoPlayer_v2();
 
    void playVideo() override;
 
    void copyVideo() override {};
 
    void closeVideo() override;
 
    int getWidth() override { return _header._width; }
 
    int getHeight() override { return _header._height; }
 
    void setVideoPalNow();
 
    void setDrawBorder(bool drawBorder) { _drawBorder = drawBorder; }
};
 
 
} // End of namespace Access
 
#endif /* ACCESS_VIDEO_H */