80 lines
2.3 KiB
C++
80 lines
2.3 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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/**
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* @file
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* Image decoder used in engines:
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* - gob
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*/
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#ifndef IMAGE_BRC_H
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#define IMAGE_BRC_H
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#include "graphics/surface.h"
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#include "image/image_decoder.h"
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namespace Common {
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class SeekableReadStream;
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}
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namespace Graphics {
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struct Surface;
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}
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namespace Image {
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/**
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* @defgroup image_brc BRC decoder
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* @ingroup image
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*
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* @brief Decoder for BRC images.
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*
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* @{
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*/
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class BRCDecoder : public ImageDecoder {
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public:
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BRCDecoder();
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~BRCDecoder() override;
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// ImageDecoder API
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void destroy() override;
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bool loadStream(Common::SeekableReadStream &stream) override;
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const Graphics::Surface *getSurface() const override { return &_surface; }
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const Graphics::Palette &getPalette() const override { return _palette; }
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private:
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Graphics::Surface _surface;
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Graphics::Palette _palette;
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Graphics::PixelFormat _format;
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void loadBRCData(Common::SeekableReadStream &stream, uint32 nbrOfChunks, bool firstChunkIsRLE);
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void loadBRCDataColumnWise(Common::SeekableReadStream &stream, uint32 nbrOfChunks, bool firstChunkIsRLE);
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void readRawChunk(Common::SeekableReadStream &stream, uint16 *&dest);
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void readRLEChunk(Common::SeekableReadStream &stream, uint16 *&dest);
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void readRawChunkColumnWise(Common::SeekableReadStream &stream, uint16 *&dest, uint16 *&destColumnStart, uint32 &remainingHeight);
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void readRLEChunkColumnWise(Common::SeekableReadStream &stream, uint16 *&dest, uint16 *&destColumnStart, uint32 &remainingHeight);
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};
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} // End of namespace Image
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#endif
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