wsamovie.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 KYRA_WSAMOVIE_H
#define KYRA_WSAMOVIE_H

#include "kyra/kyra_v1.h"

namespace Kyra {

class Palette;

class Movie {
public:
    Movie(KyraEngine_v1 *vm) : _vm(vm), _screen(vm->screen()), _opened(false),  _x(-1), _y(-1), _drawPage(-1) {}
    virtual ~Movie() {}

    virtual bool opened() { return _opened; }

    virtual int xAdd() const { return 0; }
    virtual int yAdd() const { return 0; }

    virtual int width() const = 0;
    virtual int height() const = 0;

    virtual int open(const char *filename, int offscreen, Palette *palette) = 0;
    virtual void close() = 0;

    virtual int frames() = 0;

    virtual void displayFrame(int frameNum, int pageNum, int x, int y, uint16 flags, const uint8 *table1, const uint8 *table2) = 0;

protected:
    KyraEngine_v1 *_vm;
    Screen *_screen;
    bool _opened;

    int _x, _y;
    int _drawPage;
};

class WSAMovie_v1 : public Movie {
public:
    WSAMovie_v1(KyraEngine_v1 *vm);
    ~WSAMovie_v1() override;

    int width() const override { return _width; }
    int height() const override { return _height; }

    int open(const char *filename, int offscreen, Palette *palette) override;
    void close() override;

    int frames() override { return _opened ? _numFrames : -1; }

    void displayFrame(int frameNum, int pageNum, int x, int y, uint16 flags, const uint8 *table1, const uint8 *table2) override;

    enum WSAFlags {
        WF_OFFSCREEN_DECODE = 0x10,
        WF_NO_LAST_FRAME = 0x20,
        WF_NO_FIRST_FRAME = 0x40,
        WF_FLIPPED = 0x80,
        WF_HAS_PALETTE = 0x100,
        WF_XOR = 0x200
    };

protected:
    virtual void processFrame(int frameNum, uint8 *dst);

    uint16 _currentFrame;
    uint16 _numFrames;
    uint16 _width;
    uint16 _height;
    uint16 _flags;
    uint8 *_deltaBuffer;
    uint32 _deltaBufferSize;
    uint8 *_offscreenBuffer;
    uint32 *_frameOffsTable;
    uint8 *_frameData;
};

class WSAMovieAmiga : public WSAMovie_v1 {
public:
    WSAMovieAmiga(KyraEngine_v1 *vm);
    int open(const char *filename, int offscreen, Palette *palette) override;
    void close() override;

    void displayFrame(int frameNum, int pageNum, int x, int y, uint16 flags, const uint8 *table1, const uint8 *table2) override;
private:
    void processFrame(int frameNum, uint8 *dst) override;

    uint8 *_buffer;
};

class WSAMovie_v2 : public WSAMovie_v1 {
public:
    WSAMovie_v2(KyraEngine_v1 *vm);

    int open(const char *filename, int unk1, Palette *palette) override;
    void displayFrame(int frameNum, int pageNum, int x, int y, uint16 flags, const uint8 *table1, const uint8 *table2) override {
        WSAMovie_v1::displayFrame(frameNum, pageNum, x + _xAdd, y + _yAdd, flags, table1, table2);
    }

    int xAdd() const override { return _xAdd; }
    int yAdd() const override { return _yAdd; }

    void setWidth(int w) { _width = w; }
    void setHeight(int h) { _height = h; }
protected:
    int16 _xAdd;
    int16 _yAdd;
};

} // End of namespace Kyra

#endif