gfx_chunks.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 GOT_GFX_GFX_CHUNKS_H
#define GOT_GFX_GFX_CHUNKS_H

#include "common/stream.h"
#include "got/gfx/palette.h"
#include "graphics/managed_surface.h"

namespace Got {
namespace Gfx {

class GfxChunks;

enum CompressMode { UNCOMPRESSED = 0,
                    LZSS = 1,
                    RLE = 2 };

struct GraphicChunk {
private:
    Common::Array<byte> _decompressedData;

public:
    int _compressMode = UNCOMPRESSED;
    uint32 _offset = 0;
    uint16 _uncompressedSize = 0;
    uint16 _compressedSize = 0;
    uint16 _width = 0;
    uint16 _height = 0;

    const byte *_data = nullptr;

    void load(Common::SeekableReadStream *src, const byte *data);

    void enable();

    operator const Graphics::ManagedSurface() const;

    operator const Gfx::Palette63() const;
};

class GfxChunks {
private:
    Common::Array<GraphicChunk> _chunks;
    byte *_data = nullptr;

    Common::SeekableReadStream *getStream() const;

public:
    ~GfxChunks() {
        delete[] _data;
    }

    void load();

    GraphicChunk &operator[](uint idx);
};

} // namespace Gfx
} // namespace Got

#endif