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76 lines
2.8 KiB
C++
76 lines
2.8 KiB
C++
/*
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** colormatcher.h
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**
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**---------------------------------------------------------------------------
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** Copyright 1998-2006 Randy Heit
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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**
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** 3. The name of the author may not be used to endorse or promote products
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** derived from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**---------------------------------------------------------------------------
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**
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** Once upon a time, this tried to be a fast closest color finding system.
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** It was, but the results were not as good as I would like, so I didn't
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** actually use it. But I did keep the code around in case I ever felt like
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** revisiting the problem. I never did, so now it's relegated to the mists
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** of SVN history, and this is just a thin wrapper around BestColor().
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**
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*/
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#ifndef __COLORMATCHER_H__
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#define __COLORMATCHER_H__
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#include "palutil.h"
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int BestColor (const uint32_t *pal_in, int r, int g, int b, int first, int num, const uint8_t* indexmap);
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class FColorMatcher
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{
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public:
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void SetPalette(PalEntry* palette) { Pal = palette; }
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void SetPalette (const uint32_t *palette) { Pal = reinterpret_cast<const PalEntry*>(palette); }
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void SetIndexMap(const uint8_t* index) { indexmap = index; startindex = index ? 0 : 1; }
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uint8_t Pick (int r, int g, int b)
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{
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if (Pal == nullptr)
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return 1;
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return (uint8_t)BestColor ((uint32_t *)Pal, r, g, b, startindex, 255, indexmap);
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}
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uint8_t Pick (PalEntry pe)
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{
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return Pick(pe.r, pe.g, pe.b);
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}
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private:
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const PalEntry *Pal = nullptr;
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const uint8_t* indexmap = nullptr;
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int startindex = 1;
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};
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extern FColorMatcher ColorMatcher;
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#endif //__COLORMATCHER_H__
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