screen.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 XEEN_SCREEN_H
#define XEEN_SCREEN_H
 
#include "common/rect.h"
#include "graphics/screen.h"
#include "mm/xeen/font.h"
#include "mm/xeen/sprites.h"
 
namespace MM {
namespace Xeen {
 
#define SCREEN_WIDTH 320
#define SCREEN_HEIGHT 200
#define PALETTE_COUNT 256
#define PALETTE_SIZE (256 * 3)
 
class XeenEngine;
 
class Screen : public Graphics::Screen {
private:
    XeenEngine *_vm;
    byte _mainPalette[PALETTE_SIZE];
    byte _tempPalette[PALETTE_SIZE];
    XSurface _pages[2];
    XSurface _savedScreens[10];
    bool _fadeIn;
 
    void drawScreen();
 
    void fadeInner(int step);
 
    void updatePalette();
 
    void updatePalette(const byte *pal, int start, int count16);
public:
    Screen(XeenEngine *vm);
    ~Screen() override {
    }
 
    void addDirtyRect(const Common::Rect &r) override {
        Graphics::Screen::addDirtyRect(r);
    }
 
    void loadPalette(const Common::Path &name);
 
    void loadBackground(const Common::Path &name);
 
    void loadPage(int pageNum);
 
    void freePages();
 
    void horizMerge(int xp = 0);
 
    void vertMerge(int yp);
 
    void fadeIn(int step = 4);
 
    void fadeOut(int step = 4);
 
    void saveBackground(int slot = 1);
 
    void restoreBackground(int slot = 1);
 
    bool doScroll(bool rollUp, bool fadeInFlag);
};
 
} // End of namespace Xeen
} // End of namespace MM
 
#endif