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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef INCLUDED_VCL_INC_IMPOCT_HXX
#define INCLUDED_VCL_INC_IMPOCT_HXX
#include "octree.hxx"
// ----------------
// - ImpErrorQuad -
// ----------------
class ImpErrorQuad
{
long nRed;
long nGreen;
long nBlue;
public:
ImpErrorQuad()
: nRed(0)
, nGreen(0)
, nBlue(0)
{
}
ImpErrorQuad( const BitmapColor& rColor )
: nRed( (long) rColor.GetRed() << 5L )
, nGreen( (long) rColor.GetGreen() << 5L )
, nBlue( (long) rColor.GetBlue() << 5L )
{
}
inline void operator=( const BitmapColor& rColor );
inline ImpErrorQuad& operator-=( const BitmapColor& rColor );
inline void ImplAddColorError1( const ImpErrorQuad& rErrQuad );
inline void ImplAddColorError3( const ImpErrorQuad& rErrQuad );
inline void ImplAddColorError5( const ImpErrorQuad& rErrQuad );
inline void ImplAddColorError7( const ImpErrorQuad& rErrQuad );
inline BitmapColor ImplGetColor();
};
// ------------------------------------------------------------------------
inline void ImpErrorQuad::operator=( const BitmapColor& rColor )
{
nRed = (long) rColor.GetRed() << 5L;
nGreen = (long) rColor.GetGreen() << 5L;
nBlue = (long) rColor.GetBlue() << 5L;
}
// ------------------------------------------------------------------------
inline ImpErrorQuad& ImpErrorQuad::operator-=( const BitmapColor& rColor )
{
nRed -= ( (long) rColor.GetRed() << 5L );
nGreen -= ( (long) rColor.GetGreen() << 5L );
nBlue -= ( (long) rColor.GetBlue() << 5L );
return *this;
}
// ------------------------------------------------------------------------
inline void ImpErrorQuad::ImplAddColorError1( const ImpErrorQuad& rErrQuad )
{
nRed += ( rErrQuad.nRed >> 4L );
nGreen += ( rErrQuad.nGreen >> 4L );
nBlue += ( rErrQuad.nBlue >> 4L );
}
// ------------------------------------------------------------------------
inline void ImpErrorQuad::ImplAddColorError3( const ImpErrorQuad& rErrQuad )
{
nRed += ( rErrQuad.nRed * 3L >> 4L );
nGreen += ( rErrQuad.nGreen * 3L >> 4L );
nBlue += ( rErrQuad.nBlue * 3L >> 4L );
}
// ------------------------------------------------------------------------
inline void ImpErrorQuad::ImplAddColorError5( const ImpErrorQuad& rErrQuad )
{
nRed += ( rErrQuad.nRed * 5L >> 4L );
nGreen += ( rErrQuad.nGreen * 5L >> 4L );
nBlue += ( rErrQuad.nBlue * 5L >> 4L );
}
// ------------------------------------------------------------------------
inline void ImpErrorQuad::ImplAddColorError7( const ImpErrorQuad& rErrQuad )
{
nRed += ( rErrQuad.nRed * 7L >> 4L );
nGreen += ( rErrQuad.nGreen * 7L >> 4L );
nBlue += ( rErrQuad.nBlue *7L >> 4L );
}
// ------------------------------------------------------------------------
inline BitmapColor ImpErrorQuad::ImplGetColor()
{
return BitmapColor( (sal_uInt8) ( ( nRed < 0L ? 0L : nRed > 8160L ? 8160L : nRed ) >> 5L ),
(sal_uInt8) ( ( nGreen < 0L ? 0L : nGreen > 8160L ? 8160L : nGreen ) >> 5L ),
(sal_uInt8) ( ( nBlue < 0L ? 0L : nBlue > 8160L ? 8160L : nBlue ) >> 5L ) );
}
// -------------
// - NodeCache -
// -------------
class ImpNodeCache
{
OctreeNode* pActNode;
public:
ImpNodeCache( const sal_uLong nInitSize );
~ImpNodeCache();
inline OctreeNode* ImplGetFreeNode();
inline void ImplReleaseNode( OctreeNode* pNode );
};
// ------------------------------------------------------------------------
inline OctreeNode* ImpNodeCache::ImplGetFreeNode()
{
OctreeNode* pNode;
if ( !pActNode )
{
pActNode = new NODE;
pActNode->pNextInCache = NULL;
}
pNode = pActNode;
pActNode = pNode->pNextInCache;
memset( pNode, 0, sizeof( NODE ) );
return pNode;
}
// ------------------------------------------------------------------------
inline void ImpNodeCache::ImplReleaseNode( OctreeNode* pNode )
{
pNode->pNextInCache = pActNode;
pActNode = pNode;
}
#endif // INCLUDED_VCL_INC_IMPOCT_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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