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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef _SV_OCTREE_HXX
#define _SV_OCTREE_HXX
#include <vcl/salbtype.hxx>
#include <vcl/dllapi.h>
// -----------
// - Defines -
// -----------
#define OCTREE_BITS 5
#define OCTREE_BITS_1 10
// --------------
// - OctreeNode -
// --------------
typedef struct OctreeNode
{
sal_uLong nCount;
sal_uLong nRed;
sal_uLong nGreen;
sal_uLong nBlue;
OctreeNode* pChild[ 8 ];
OctreeNode* pNext;
OctreeNode* pNextInCache;
sal_uInt16 nPalIndex;
sal_Bool bLeaf;
} NODE;
typedef NODE* PNODE;
typedef PNODE* PPNODE;
// ----------
// - Octree -
// ----------
class ImpNodeCache;
class BitmapReadAccess;
class VCL_DLLPUBLIC Octree
{
private:
BitmapPalette aPal;
sal_uLong nMax;
sal_uLong nLeafCount;
sal_uLong nLevel;
PNODE pTree;
PNODE pReduce[ OCTREE_BITS + 1 ];
BitmapColor* pColor;
ImpNodeCache* pNodeCache;
const BitmapReadAccess* pAcc;
sal_uInt16 nPalIndex;
Octree() {};
void CreatePalette( PNODE pNode );
void GetPalIndex( PNODE pNode );
SAL_DLLPRIVATE void ImplCreateOctree();
SAL_DLLPRIVATE void ImplDeleteOctree( PPNODE ppNode );
SAL_DLLPRIVATE void ImplAdd( PPNODE ppNode );
SAL_DLLPRIVATE void ImplReduce();
public:
Octree( const BitmapReadAccess& rReadAcc, sal_uLong nColors );
Octree( sal_uLong nColors );
~Octree();
void AddColor( const BitmapColor& rColor );
inline const BitmapPalette& GetPalette();
inline sal_uInt16 GetBestPaletteIndex( const BitmapColor& rColor );
};
// ------------------------------------------------------------------------
inline const BitmapPalette& Octree::GetPalette()
{
aPal.SetEntryCount( (sal_uInt16) nLeafCount );
nPalIndex = 0;
CreatePalette( pTree );
return aPal;
}
// ------------------------------------------------------------------------
inline sal_uInt16 Octree::GetBestPaletteIndex( const BitmapColor& rColor )
{
pColor = &(BitmapColor&) rColor;
nPalIndex = 65535;
nLevel = 0L;
GetPalIndex( pTree );
return nPalIndex;
}
// -------------------
// - InverseColorMap -
// -------------------
class VCL_DLLPUBLIC InverseColorMap
{
private:
sal_uInt8* pBuffer;
sal_uInt8* pMap;
const sal_uLong nBits;
//#if 0 // _SOLAR__PRIVATE
SAL_DLLPRIVATE void ImplCreateBuffers( const sal_uLong nMax );
//#endif // __PRIVATE
public:
InverseColorMap( const BitmapPalette& rPal );
~InverseColorMap();
inline sal_uInt16 GetBestPaletteIndex( const BitmapColor& rColor );
};
// ------------------------------------------------------------------------
inline sal_uInt16 InverseColorMap::GetBestPaletteIndex( const BitmapColor& rColor )
{
return pMap[ ( ( (sal_uLong) rColor.GetRed() >> nBits ) << OCTREE_BITS_1 ) |
( ( (sal_uLong) rColor.GetGreen() >> nBits ) << OCTREE_BITS ) |
( (sal_uLong) rColor.GetBlue() >> nBits ) ];
}
#endif // _SV_OCTREE_HXX
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