88 lines
2.2 KiB
C++
88 lines
2.2 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef QDENGINE_SYSTEM_GRAPHICS_RLE_COMPRESS_H
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#define QDENGINE_SYSTEM_GRAPHICS_RLE_COMPRESS_H
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namespace QDEngine {
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//! Массив, сжатый методом RLE.
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class RLEBuffer {
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public:
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RLEBuffer();
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RLEBuffer(const RLEBuffer &buf);
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~RLEBuffer();
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RLEBuffer &operator = (const RLEBuffer &buf);
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bool encode(int sx, int sy, const byte *buf);
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bool decode_line(int y, byte *out_buf) const;
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bool decode_line(int y, int buffer_id = 0) const;
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bool decode_pixel(int x, int y, uint32 &pixel);
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static const byte *get_buffer(int buffer_id);
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void resize_buffers();
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uint32 size();
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int line_length();
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int line_header_length(int line_num) const;
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uint32 header_size() const {
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return _header.size();
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}
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uint32 data_size() const {
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return _data.size();
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}
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const int8 *header_ptr(int y = 0) const {
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return &*(_header.begin() + _header_offset[y]);
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}
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const uint32 *data_ptr(int y = 0) const {
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return &*(_data.begin() + _data_offset[y]);
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}
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bool load(Common::SeekableReadStream *fh);
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bool convert_data(int bits_per_pixel = 16);
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static void releaseBuffers();
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private:
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Std::vector<uint32> _header_offset;
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Std::vector<uint32> _data_offset;
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Std::vector<int8> _header;
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Std::vector<uint32> _data;
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int _bits_per_pixel;
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friend bool operator == (const RLEBuffer &buf1, const RLEBuffer &buf2);
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};
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} // namespace QDEngine
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#endif // QDENGINE_SYSTEM_GRAPHICS_RLE_COMPRESS_H
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