surface_area.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 TITANIC_SURFACE_OBJ_H
#define TITANIC_SURFACE_OBJ_H

#include "titanic/support/rect.h"
#include "titanic/support/video_surface.h"
#include "titanic/star_control/fpoint.h"
#include "titanic/star_control/frect.h"

namespace Titanic {

enum SurfaceAreaMode {
    SA_SOLID = 0, SA_MODE1 = 1, SA_MODE2 = 2, SA_XOR = 3, SA_MODE4 = 4
};

class CSurfaceArea {
    template<typename T>
    static void plotPoint(int x, int y, int color, void *data) {
        CSurfaceArea *sa = (CSurfaceArea *)data;
        if (x >= 0 && x < sa->_width && y >= 0 && y < sa->_height) {
            T *ptr = (T *)sa->_surface->getBasePtr(x, y);
            *ptr = (*ptr & sa->_colorMask) ^ sa->_color;
        }
    }
private:
    void initialize();

    void setColor(uint rgb);

    void pixelToRGB(uint pixel, uint *rgb);

    Graphics::PixelFormat getPixelFormat() const;
public:
    int _field0;
    int _width;
    int _height;
    int _pitch;
    int _bpp;
    byte *_pixelsPtr;
    FPoint _centroid;
    uint _pixel;
    byte _field24;
    byte _field25;
    byte _field26;
    byte _field27;
    uint _rgb;
    int _field2C;
    uint _colorMask;
    uint _color;
    SurfaceAreaMode _mode;
    Rect _bounds;
    Graphics::Surface *_surface;
public:
    CSurfaceArea(CVideoSurface *surface);

    SurfaceAreaMode setMode(SurfaceAreaMode mode);

    void setColorFromPixel();

    double drawLine(const FPoint &pt1, const FPoint &pt2);

    double drawLine(const FRect &rect) {
        return drawLine(FPoint(rect.left, rect.top), FPoint(rect.right, rect.bottom));
    }
};

} // End of namespace Titanic

#endif /* TITANIC_STAR_CONTROL_SUB16_H */