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/* 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 QDENGINE_SYSTEM_GRAPHICS_RLE_COMPRESS_H
#define QDENGINE_SYSTEM_GRAPHICS_RLE_COMPRESS_H
namespace QDEngine {
//! Массив, сжатый методом RLE.
class RLEBuffer {
public:
RLEBuffer();
RLEBuffer(const RLEBuffer &buf);
~RLEBuffer();
RLEBuffer &operator = (const RLEBuffer &buf);
bool encode(int sx, int sy, const byte *buf);
bool decode_line(int y, byte *out_buf) const;
bool decode_line(int y, int buffer_id = 0) const;
bool decode_pixel(int x, int y, uint32 &pixel);
static const byte *get_buffer(int buffer_id);
void resize_buffers();
uint32 size();
int line_length();
int line_header_length(int line_num) const;
uint32 header_size() const {
return _header.size();
}
uint32 data_size() const {
return _data.size();
}
const int8 *header_ptr(int y = 0) const {
return &*(_header.begin() + _header_offset[y]);
}
const uint32 *data_ptr(int y = 0) const {
return &*(_data.begin() + _data_offset[y]);
}
bool load(Common::SeekableReadStream *fh);
bool convert_data(int bits_per_pixel = 16);
static void releaseBuffers();
private:
Std::vector<uint32> _header_offset;
Std::vector<uint32> _data_offset;
Std::vector<int8> _header;
Std::vector<uint32> _data;
int _bits_per_pixel;
friend bool operator == (const RLEBuffer &buf1, const RLEBuffer &buf2);
};
} // namespace QDEngine
#endif // QDENGINE_SYSTEM_GRAPHICS_RLE_COMPRESS_H
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