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64 lines
2.1 KiB
C++
64 lines
2.1 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 GLK_RAW_DECODER_H
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#define GLK_RAW_DECODER_H
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#include "graphics/surface.h"
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#include "image/image_decoder.h"
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namespace Glk {
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/**
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* This image decoder class implements loading of a simplified image format.
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* It's used for sub-engines like Frotz with custom picture formats. They can
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* expose their picture archives using Common::Archive, and have the individual
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* picture files stored in the format for this decoder to load
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* Format:
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* width 2 bytes
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* height 2 bytes
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* pal size 1 byte
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* palette 3 bytes * pal size
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* pixels width * height pixels
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*/
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class RawDecoder : public Image::ImageDecoder {
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private:
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Graphics::Surface _surface;
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byte *_palette;
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uint16 _paletteColorCount;
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uint32 _transColor;
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public:
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RawDecoder();
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~RawDecoder() override;
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bool loadStream(Common::SeekableReadStream &stream) override;
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void destroy() override;
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const Graphics::Surface *getSurface() const override { return &_surface; }
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const byte *getPalette() const override { return _palette; }
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uint16 getPaletteColorCount() const override { return _paletteColorCount; }
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bool hasTransparentColor() const override { return true; }
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uint32 getTransparentColor() const override { return _transColor; }
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};
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} // End of namespace Glk
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#endif
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