vcl/inc/impoct.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
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   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #ifndef _SV_IMPOCT_HXX
  21 #define _SV_IMPOCT_HXX
  22
  23 #include <vcl/octree.hxx>
  24
  25 // ----------------
  26 // - ImpErrorQuad -
  27 // ----------------
  28
  29 class ImpErrorQuad
  30 {
  31     long                    nRed;
  32     long                    nGreen;
  33     long                    nBlue;
  34
  35 public:
  36
  37     inline                  ImpErrorQuad() {}
  38     inline                  ImpErrorQuad( const BitmapColor& rColor ) :
  39                                 nRed    ( (long) rColor.GetRed() << 5L ),
  40                                 nGreen  ( (long) rColor.GetGreen() << 5L ),
  41                                 nBlue   ( (long) rColor.GetBlue() << 5L ) {}
  42
  43     inline void             operator=( const BitmapColor& rColor );
  44     inline ImpErrorQuad&    operator-=( const BitmapColor& rColor );
  45
  46     inline void             ImplAddColorError1( const ImpErrorQuad& rErrQuad );
  47     inline void             ImplAddColorError3( const ImpErrorQuad& rErrQuad );
  48     inline void             ImplAddColorError5( const ImpErrorQuad& rErrQuad );
  49     inline void             ImplAddColorError7( const ImpErrorQuad& rErrQuad );
  50
  51     inline BitmapColor      ImplGetColor();
  52 };
  53
  54 // ------------------------------------------------------------------------
  55
  56 inline void ImpErrorQuad::operator=( const BitmapColor& rColor )
  57 {
  58     nRed = (long) rColor.GetRed() << 5L;
  59     nGreen = (long) rColor.GetGreen() << 5L;
  60     nBlue = (long) rColor.GetBlue() << 5L;
  61 }
  62
  63 // ------------------------------------------------------------------------
  64
  65 inline ImpErrorQuad& ImpErrorQuad::operator-=( const BitmapColor& rColor )
  66 {
  67     nRed -= ( (long) rColor.GetRed() << 5L );
  68     nGreen -= ( (long) rColor.GetGreen() << 5L );
  69     nBlue -= ( (long) rColor.GetBlue() << 5L );
  70
  71     return *this;
  72 }
  73
  74 // ------------------------------------------------------------------------
  75
  76 inline void ImpErrorQuad::ImplAddColorError1( const ImpErrorQuad& rErrQuad )
  77 {
  78     nRed += ( rErrQuad.nRed >> 4L );
  79     nGreen += ( rErrQuad.nGreen >> 4L );
  80     nBlue += ( rErrQuad.nBlue >> 4L );
  81 }
  82
  83 // ------------------------------------------------------------------------
  84
  85 inline void ImpErrorQuad::ImplAddColorError3( const ImpErrorQuad& rErrQuad )
  86 {
  87     nRed += ( rErrQuad.nRed * 3L >> 4L );
  88     nGreen += ( rErrQuad.nGreen * 3L >> 4L );
  89     nBlue += ( rErrQuad.nBlue * 3L >> 4L );
  90 }
  91
  92 // ------------------------------------------------------------------------
  93
  94 inline void ImpErrorQuad::ImplAddColorError5( const ImpErrorQuad& rErrQuad )
  95 {
  96     nRed += ( rErrQuad.nRed * 5L >> 4L );
  97     nGreen += ( rErrQuad.nGreen * 5L >> 4L );
  98     nBlue += ( rErrQuad.nBlue * 5L >> 4L );
  99 }
 100
 101 // ------------------------------------------------------------------------
 102
 103 inline void ImpErrorQuad::ImplAddColorError7( const ImpErrorQuad& rErrQuad )
 104 {
 105     nRed += ( rErrQuad.nRed * 7L >> 4L );
 106     nGreen += ( rErrQuad.nGreen * 7L >> 4L );
 107     nBlue += ( rErrQuad.nBlue *7L >> 4L );
 108 }
 109
 110 // ------------------------------------------------------------------------
 111
 112 inline BitmapColor ImpErrorQuad::ImplGetColor()
 113 {
 114     return BitmapColor( (sal_uInt8) ( ( nRed < 0L ? 0L : nRed > 8160L ? 8160L : nRed ) >> 5L ),
 115                         (sal_uInt8) ( ( nGreen < 0L ? 0L : nGreen > 8160L ? 8160L : nGreen ) >> 5L ),
 116                         (sal_uInt8) ( ( nBlue < 0L ? 0L : nBlue > 8160L ? 8160L : nBlue ) >> 5L ) );
 117 }
 118
 119 // -------------
 120 // - NodeCache -
 121 // -------------
 122
 123 class ImpNodeCache
 124 {
 125     OctreeNode*         pActNode;
 126
 127 public:
 128
 129                         ImpNodeCache( const sal_uLong nInitSize );
 130                         ~ImpNodeCache();
 131
 132     inline OctreeNode*  ImplGetFreeNode();
 133     inline void         ImplReleaseNode( OctreeNode* pNode );
 134 };
 135
 136 // ------------------------------------------------------------------------
 137
 138 inline OctreeNode* ImpNodeCache::ImplGetFreeNode()
 139 {
 140     OctreeNode* pNode;
 141
 142     if ( !pActNode )
 143     {
 144         pActNode = new NODE;
 145         pActNode->pNextInCache = NULL;
 146     }
 147
 148     pNode = pActNode;
 149     pActNode = pNode->pNextInCache;
 150     memset( pNode, 0, sizeof( NODE ) );
 151
 152     return pNode;
 153 }
 154
 155 // ------------------------------------------------------------------------
 156
 157 inline void ImpNodeCache::ImplReleaseNode( OctreeNode* pNode )
 158 {
 159     pNode->pNextInCache = pActNode;
 160     pActNode = pNode;
 161 }
 162
 163 #endif // _SV_IMPOCT_HXX
 164
 165 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */