C++ (Cpp) CDirtyRegion示例

示例#1

文件： DirtyRegionSolvers.cpp 项目： AWilco/xbmc

void CGreedyDirtyRegionSolver::Solve(const CDirtyRegionList &input, CDirtyRegionList &output)
{
  for (unsigned int i = 0; i < input.size(); i++)
  {
    CDirtyRegion possibleUnionRegion;
    int   possibleUnionNbr = -1;
    float possibleUnionCost = 100000.0f;

    CDirtyRegion currentRegion = input[i];
    for (unsigned int j = 0; j < output.size(); j++)
    {
      CDirtyRegion temporaryUnion = output[j];
      temporaryUnion.Union(currentRegion);
      float temporaryCost = m_costPerArea * (temporaryUnion.Area() - output[j].Area());
      if (temporaryCost < possibleUnionCost)
      {
        // TODO if the temporaryCost is 0 then we could skip checking the other regions since there exist no better solution
        possibleUnionRegion = temporaryUnion;
        possibleUnionNbr    = j;
        possibleUnionCost   = temporaryCost;
      }
    }

    float newRegionTotalCost = m_costPerArea * currentRegion.Area() + m_costNewRegion;

    if (possibleUnionNbr >= 0 && possibleUnionCost < newRegionTotalCost)
      output[possibleUnionNbr] = possibleUnionRegion;
    else
      output.push_back(currentRegion);
  }
}

示例#2

文件： DirtyRegionSolvers.cpp 项目： AWilco/xbmc

void CUnionDirtyRegionSolver::Solve(const CDirtyRegionList &input, CDirtyRegionList &output)
{
  CDirtyRegion unifiedRegion;
  for (unsigned int i = 0; i < input.size(); i++)
    unifiedRegion.Union(input[i]);

  if (!unifiedRegion.IsEmpty())
    output.push_back(unifiedRegion);
}

示例#3

文件： DirtyRegionTracker.cpp 项目： Alxandr/spotyxbmc2

void CDirtyRegionTracker::MarkDirtyRegion(const CDirtyRegion &region)
{
  if (!region.IsEmpty())
    m_markedRegions.push_back(region);
}