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.
   4  *
   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 INCLUDED_VCL_INC_IMPOCT_HXX
  21 #define INCLUDED_VCL_INC_IMPOCT_HXX
  22
  23 #include "octree.hxx"
  24
  25 // - ImpErrorQuad -
  26
  27 class ImpErrorQuad
  28 {
  29     long nRed;
  30     long nGreen;
  31     long nBlue;
  32
  33 public:
  34
  35     ImpErrorQuad()
  36         : nRed(0)
  37         , nGreen(0)
  38         , nBlue(0)
  39     {
  40     }
  41
  42     ImpErrorQuad( const BitmapColor& rColor )
  43         : nRed( (long) rColor.GetRed() << 5L )
  44         , nGreen( (long) rColor.GetGreen() << 5L )
  45         , nBlue( (long) rColor.GetBlue() << 5L )
  46     {
  47     }
  48
  49     inline void             operator=( const BitmapColor& rColor );
  50     inline ImpErrorQuad&    operator-=( const BitmapColor& rColor );
  51
  52     inline void             ImplAddColorError1( const ImpErrorQuad& rErrQuad );
  53     inline void             ImplAddColorError3( const ImpErrorQuad& rErrQuad );
  54     inline void             ImplAddColorError5( const ImpErrorQuad& rErrQuad );
  55     inline void             ImplAddColorError7( const ImpErrorQuad& rErrQuad );
  56
  57     inline BitmapColor      ImplGetColor();
  58 };
  59
  60 inline void ImpErrorQuad::operator=( const BitmapColor& rColor )
  61 {
  62     nRed = (long) rColor.GetRed() << 5L;
  63     nGreen = (long) rColor.GetGreen() << 5L;
  64     nBlue = (long) rColor.GetBlue() << 5L;
  65 }
  66
  67 inline ImpErrorQuad& ImpErrorQuad::operator-=( const BitmapColor& rColor )
  68 {
  69     nRed -= ( (long) rColor.GetRed() << 5L );
  70     nGreen -= ( (long) rColor.GetGreen() << 5L );
  71     nBlue -= ( (long) rColor.GetBlue() << 5L );
  72
  73     return *this;
  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 inline void ImpErrorQuad::ImplAddColorError3( const ImpErrorQuad& rErrQuad )
  84 {
  85     nRed += ( rErrQuad.nRed * 3L >> 4L );
  86     nGreen += ( rErrQuad.nGreen * 3L >> 4L );
  87     nBlue += ( rErrQuad.nBlue * 3L >> 4L );
  88 }
  89
  90 inline void ImpErrorQuad::ImplAddColorError5( const ImpErrorQuad& rErrQuad )
  91 {
  92     nRed += ( rErrQuad.nRed * 5L >> 4L );
  93     nGreen += ( rErrQuad.nGreen * 5L >> 4L );
  94     nBlue += ( rErrQuad.nBlue * 5L >> 4L );
  95 }
  96
  97 inline void ImpErrorQuad::ImplAddColorError7( const ImpErrorQuad& rErrQuad )
  98 {
  99     nRed += ( rErrQuad.nRed * 7L >> 4L );
 100     nGreen += ( rErrQuad.nGreen * 7L >> 4L );
 101     nBlue += ( rErrQuad.nBlue *7L >> 4L );
 102 }
 103
 104 inline BitmapColor ImpErrorQuad::ImplGetColor()
 105 {
 106     return BitmapColor( (sal_uInt8) ( ( nRed < 0L ? 0L : nRed > 8160L ? 8160L : nRed ) >> 5L ),
 107                         (sal_uInt8) ( ( nGreen < 0L ? 0L : nGreen > 8160L ? 8160L : nGreen ) >> 5L ),
 108                         (sal_uInt8) ( ( nBlue < 0L ? 0L : nBlue > 8160L ? 8160L : nBlue ) >> 5L ) );
 109 }
 110
 111 // - NodeCache -
 112
 113 class ImpNodeCache
 114 {
 115     OctreeNode*         pActNode;
 116
 117 public:
 118
 119                         ImpNodeCache( const sal_uLong nInitSize );
 120                         ~ImpNodeCache();
 121
 122     inline OctreeNode*  ImplGetFreeNode();
 123     inline void         ImplReleaseNode( OctreeNode* pNode );
 124 };
 125
 126 inline OctreeNode* ImpNodeCache::ImplGetFreeNode()
 127 {
 128     OctreeNode* pNode;
 129
 130     if ( !pActNode )
 131     {
 132         pActNode = new NODE;
 133         pActNode->pNextInCache = NULL;
 134     }
 135
 136     pNode = pActNode;
 137     pActNode = pNode->pNextInCache;
 138     memset( pNode, 0, sizeof( NODE ) );
 139
 140     return pNode;
 141 }
 142
 143 inline void ImpNodeCache::ImplReleaseNode( OctreeNode* pNode )
 144 {
 145     pNode->pNextInCache = pActNode;
 146     pActNode = pNode;
 147 }
 148
 149 #endif // INCLUDED_VCL_INC_IMPOCT_HXX
 150
 151 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */