dds.h

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/* xoreos - A reimplementation of BioWare's Aurora engine
 *
 * xoreos is the legal property of its developers, whose names
 * can be found in the AUTHORS file distributed with this source
 * distribution.
 *
 * xoreos 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.
 *
 * xoreos 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 xoreos. If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef GRAPHICS_IMAGES_DDS_H
#define GRAPHICS_IMAGES_DDS_H

#include "src/graphics/images/decoder.h"

namespace Common {
    class SeekableReadStream;
}

namespace Graphics {

class DDS : public ImageDecoder {
public:
    DDS(Common::SeekableReadStream &dds);
    ~DDS();

private:
    enum DataType {
        kDataTypeDirect,
        kDataType4444
    };

    struct DDSPixelFormat {
        uint32 size;     
        uint32 flags;    
        uint32 fourCC;   
        uint32 bitCount; 
        uint32 rBitMask; 
        uint32 gBitMask; 
        uint32 bBitMask; 
        uint32 aBitMask; 
    };

    // Loading helpers
    void load(Common::SeekableReadStream &dds);
    void readHeader(Common::SeekableReadStream &dds, DataType &dataType);
    void readStandardHeader(Common::SeekableReadStream &dds, DataType &dataType);
    void readBioWareHeader(Common::SeekableReadStream &dds, DataType &dataType);
    void readData(Common::SeekableReadStream &dds, DataType dataType);

    void detectFormat(const DDSPixelFormat &format, DataType &dataType);

    void setSize(MipMap &mipMap);
};

} // End of namespace Graphics

#endif // GRAPHICS_IMAGES_DDS_H