pod_image.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/>.
 *
 * Copyright 2020 Google
 *
 */
#ifndef HADESCH_POD_IMAGE_H
#define HADESCH_POD_IMAGE_H

#include "hadesch/pod_file.h"
#include "common/ptr.h"
#include "common/rect.h"
#include "common/hashmap.h"
#include "hadesch/gfx_context.h"
#include "graphics/cursor.h"

namespace Hadesch {

class PodImage : public Graphics::Cursor {
public:
    PodImage();
    bool loadImage(const PodFile &col, int index);
    void render(Common::SharedPtr<GfxContext>, Common::Point offset,
            int colourScale = 0x100, int scale = 100) const;
    bool isValid() const;
    void setHotspot(Common::Point pnt);
    Common::Point getOffset() const;

    uint16 getWidth() const override;
    uint16 getHeight() const override;
    uint16 getHotspotX() const override;
    uint16 getHotspotY() const override;
    byte getKeyColor() const override;
    const byte *getSurface() const override;
    const byte *getPalette() const override;
    byte getPaletteStartIndex() const override;
    uint16 getPaletteCount() const override;

    ~PodImage();
private:
    struct ScaledVersion {
        Common::SharedPtr<byte> _pixels;
        int _w, _h;
    };
    void makeScale(int scale) const;

    mutable Common::HashMap<int, ScaledVersion> _scales;
    int _w, _h;
    Common::Point _pos, _hotspot;
    int _ncolors;
    Common::SharedPtr<byte> _pixels;
    Common::SharedPtr<byte> _palette;
    Common::SharedPtr<byte> _paletteCursor;
};
}

#endif