127 lines
3.7 KiB
C++
127 lines
3.7 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef INCLUDED_VCL_INC_OCTREE_HXX
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#define INCLUDED_VCL_INC_OCTREE_HXX
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#include <vcl/salbtype.hxx>
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#include <vcl/dllapi.h>
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#define OCTREE_BITS 5
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#define OCTREE_BITS_1 10
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typedef struct OctreeNode
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{
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sal_uLong nCount;
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sal_uLong nRed;
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sal_uLong nGreen;
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sal_uLong nBlue;
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OctreeNode* pChild[ 8 ];
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OctreeNode* pNext;
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OctreeNode* pNextInCache;
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sal_uInt16 nPalIndex;
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bool bLeaf;
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} NODE;
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typedef NODE* PNODE;
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typedef PNODE* PPNODE;
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class ImpNodeCache;
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class BitmapReadAccess;
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class VCL_PLUGIN_PUBLIC Octree
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{
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private:
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BitmapPalette aPal;
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sal_uLong nMax;
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sal_uLong nLeafCount;
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sal_uLong nLevel;
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PNODE pTree;
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PNODE pReduce[ OCTREE_BITS + 1 ];
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BitmapColor* pColor;
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ImpNodeCache* pNodeCache;
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const BitmapReadAccess* pAcc;
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sal_uInt16 nPalIndex;
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Octree() {}
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void CreatePalette( PNODE pNode );
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void GetPalIndex( PNODE pNode );
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SAL_DLLPRIVATE void ImplCreateOctree();
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SAL_DLLPRIVATE void ImplDeleteOctree( PPNODE ppNode );
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SAL_DLLPRIVATE void ImplAdd( PPNODE ppNode );
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SAL_DLLPRIVATE void ImplReduce();
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public:
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Octree( const BitmapReadAccess& rReadAcc, sal_uLong nColors );
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~Octree();
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inline const BitmapPalette& GetPalette();
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inline sal_uInt16 GetBestPaletteIndex( const BitmapColor& rColor );
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};
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inline const BitmapPalette& Octree::GetPalette()
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{
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aPal.SetEntryCount( (sal_uInt16) nLeafCount );
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nPalIndex = 0;
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CreatePalette( pTree );
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return aPal;
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}
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inline sal_uInt16 Octree::GetBestPaletteIndex( const BitmapColor& rColor )
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{
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pColor = &(BitmapColor&) rColor;
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nPalIndex = 65535;
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nLevel = 0L;
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GetPalIndex( pTree );
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return nPalIndex;
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}
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class VCL_PLUGIN_PUBLIC InverseColorMap
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{
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private:
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sal_uInt8* pBuffer;
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sal_uInt8* pMap;
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const sal_uLong nBits;
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SAL_DLLPRIVATE void ImplCreateBuffers( const sal_uLong nMax );
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public:
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explicit InverseColorMap( const BitmapPalette& rPal );
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~InverseColorMap();
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inline sal_uInt16 GetBestPaletteIndex( const BitmapColor& rColor );
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};
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inline sal_uInt16 InverseColorMap::GetBestPaletteIndex( const BitmapColor& rColor )
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{
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return pMap[ ( ( (sal_uLong) rColor.GetRed() >> nBits ) << OCTREE_BITS_1 ) |
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( ( (sal_uLong) rColor.GetGreen() >> nBits ) << OCTREE_BITS ) |
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( (sal_uLong) rColor.GetBlue() >> nBits ) ];
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}
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#endif // INCLUDED_VCL_INC_OCTREE_HXX
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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