71 lines
1.9 KiB
C++
71 lines
1.9 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 GRAPHICS_COLOR_QUANTIZER_H
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#define GRAPHICS_COLOR_QUANTIZER_H
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namespace Graphics {
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class Octree;
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class Palette;
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/**
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* @brief Class for selecting a good palette from a large number of colors.
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*
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* Colors are added one by one, after which a palette with at most maxColors
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* entries can be retrieved. The caller is responsible for freeing the palette
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* afterwards.
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*/
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class ColorQuantizer {
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private:
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Octree *_octree = nullptr;
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public:
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/**
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* @brief Construct a new ColorQuantizer object
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*
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* @param maxColors the maximum number of colors in the final palette
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*/
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ColorQuantizer(int maxColors);
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~ColorQuantizer();
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/**
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* @brief Add a single color to the quantizer
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*
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* @param r the R component of the color
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* @param g the G component of the color
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* @param b the B component of the color
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*/
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void addColor(byte r, byte g, byte b);
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/**
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* @brief Retrieve the resulting palette from the quantizer.
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*
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* @return A Palette object with at most maxColor entries.
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*/
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Palette *getPalette();
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};
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} // End of namespace Graphics
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#endif
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