graphics.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 PRINCE_GRAPHICS_H
#define PRINCE_GRAPHICS_H

#include "graphics/surface.h"

namespace Prince {

class PrinceEngine;
class MhwanhDecoder;
struct DrawNode;

class GraphicsMan {
public:
    GraphicsMan(PrinceEngine *vm);
    ~GraphicsMan();

    void update(Graphics::Surface *screen);

    void change();

    void setPalette(const byte *palette);
    void makeShadowTable(int brightness, byte *shadowTable);

    void draw(Graphics::Surface *screen, const Graphics::Surface *s);
    void drawTransparentSurface(Graphics::Surface *screen, int32 posX, int32 posY, const Graphics::Surface *s, int secondTransColor = 0);
    void drawAsShadowSurface(Graphics::Surface *screen, int32 posX, int32 posY, const Graphics::Surface *s, byte *shadowTable);
    void drawTransparentWithBlendSurface(Graphics::Surface *screen, int32 posX, int32 posY, const Graphics::Surface *s);

    static void drawTransparentDrawNode(Graphics::Surface *screen, DrawNode *drawNode);
    static void drawTransparentWithTransDrawNode(Graphics::Surface *screen, DrawNode *drawNode);
    static void drawAsShadowDrawNode(Graphics::Surface *screen, DrawNode *drawNode);
    static void drawMaskDrawNode(Graphics::Surface *screen, DrawNode *drawNode);
    static void drawBackSpriteDrawNode(Graphics::Surface *screen, DrawNode *drawNode);

    byte getBlendTableColor(byte pixelColor, byte backgroundPixelColor, byte *blendTable);

    Graphics::Surface *_frontScreen;
    Graphics::Surface *_screenForInventory;
    Graphics::Surface *_mapScreen;
    const Graphics::Surface *_roomBackground;

    byte *_shadowTable70;
    byte *_shadowTable50;

    static const byte kShadowColor = 191;

private:
    PrinceEngine *_vm;
    bool _changed;
};

} // End of namespace Prince

#endif