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 MEDIASTATION_BITMAP_H
#define MEDIASTATION_BITMAP_H
 
#include "common/rect.h"
#include "graphics/managed_surface.h"
 
#include "mediastation/datafile.h"
#include "mediastation/actor.h"
 
namespace MediaStation {
 
enum BitmapCompressionType {
    kUncompressedBitmap = 0,
    kRle8BitmapCompression = 1,
    kCccBitmapCompression = 5,
    kCccTransparentBitmapCompression = 6,
    kUncompressedTransparentBitmap = 7,
};
 
class ImageInfo {
public:
    ImageInfo() = default;
    ImageInfo(Chunk &chunk);
 
    Common::Point _dimensions;
    BitmapCompressionType _compressionType = kUncompressedBitmap;
    int16 _stride = 0;
    uint _imageDataStartOffset = 0;
};
 
class PixMapImage {
public:
    PixMapImage(Chunk &chunk, const ImageInfo &imageInfo, bool decompressInPlace = false);
    PixMapImage(const ImageInfo &imageInfo, bool decompressInPlace = false);
    virtual ~PixMapImage();
 
    bool isCompressed() const;
    BitmapCompressionType getCompressionType() const { return _imageInfo._compressionType; }
    void setCompressionType(BitmapCompressionType compressionType) { _imageInfo._compressionType = compressionType; }
    int16 width() const { return _imageInfo._dimensions.x; }
    int16 height() const { return _imageInfo._dimensions.y; }
    int16 stride() const { return _imageInfo._stride; }
 
    Common::SeekableReadStream *_compressedStream = nullptr;
    Graphics::ManagedSurface _image;
 
private:
    ImageInfo _imageInfo;
    void decompress();
};
 
} // End of namespace MediaStation
 
#endif