bitmap.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 GRIM_BITMAP_H
#define GRIM_BITMAP_H

#include "graphics/pixelformat.h"

#include "common/endian.h"
#include "common/hashmap.h"
#include "common/hash-str.h"

#include "engines/grim/pool.h"

namespace Graphics {
struct Surface;
}

namespace Common {
class SeekableReadStream;
}

namespace Grim {

class BitmapData {
public:
    BitmapData(const Common::String &fname);
    BitmapData(const Graphics::Surface &buf, int w, int h, const char *fname);
    BitmapData();
    ~BitmapData();

    void freeData();

    void load();

    bool loadTile(Common::SeekableReadStream *data);
    bool loadGrimBm(Common::SeekableReadStream *data);
    bool loadTGA(Common::SeekableReadStream *data);

    static BitmapData *getBitmapData(const Common::String &fname);
    static Common::HashMap<Common::String, BitmapData *> *_bitmaps;

    const Graphics::Surface &getImageData(int num) const;

    void convertToColorFormat(const Graphics::PixelFormat &format);

    void convertToColorFormat(int num, const Graphics::PixelFormat &format);

    Common::String _fname;
    int _numImages;
    int _width, _height, _x, _y;
    int _format;
    int _numTex;
    int _bpp;
    void *_texIds;
    bool _hasTransparency;
    bool _loaded;
    bool _keepData;

    int _refCount;

    float *_texc;

    struct Vert {
        uint32 _texid;
        uint32 _pos;
        uint32 _verts;
    };
    struct Layer {
        uint32 _offset;
        uint32 _numImages;
    };
    Vert *_verts;
    Layer *_layers;
    uint32 _numCoords;
    uint32 _numVerts;
    uint32 _numLayers;

//private:
    Graphics::Surface *_data;
    void *_userData;
};

class Bitmap : public PoolObject<Bitmap> {
public:
    Bitmap(const Common::String &filename);
    Bitmap(const Graphics::Surface &buf, int width, int height, const char *filename);
    Bitmap();

    static int32 getStaticTag() { return MKTAG('V', 'B', 'U', 'F'); }

    static Bitmap *create(const Common::String &filename);

    const Common::String &getFilename() const { return _data->_fname; }

    void draw();
    void draw(int x, int y);

    void drawLayer(uint32 layer);

    void setActiveImage(int n);

    int getNumImages() const;
    int getNumLayers() const;
    int getActiveImage() const { return _currImage; }
    bool getHasTransparency() const { return _data->_hasTransparency; }
    int getFormat() const { return _data->_format; }
    int getWidth() const { return _data->_width; }
    int getHeight() const { return _data->_height; }

    const Graphics::Surface &getData(int num) const { return _data->getImageData(num); }
    const Graphics::Surface &getData() const { return getData(_currImage); }
    BitmapData *getBitmapData() const { return _data; }
    void *getTexIds() const { return _data->_texIds; }
    int getNumTex() const { return _data->_numTex; }
    const Graphics::PixelFormat &getPixelFormat(int num) const;

    void saveState(SaveGame *state) const;
    void restoreState(SaveGame *state);

    virtual ~Bitmap();

//private:
    void freeData();

    BitmapData *_data;
    int _currImage;
};

} // end of namespace Grim

#endif