internal int GetPaletteIndex(Color32 *pixel, int level)
{
int pindex = paletteIndex;
if (!Leaf)
{
int shift = 7 - level;
int index = ((pixel->Red & mask[level]) >> (shift - 2)) |
((pixel->Green & mask[level]) >> (shift - 1)) |
((pixel->Blue & mask[level]) >> (shift));
OcTreeNode child = Children[index];
if (child != null)
{
child.GetPaletteIndex(pixel, level + 1);
}
else
{
throw new Exception("不可预料的事情发生了!");
}
}
return(pindex);
}
internal int GetPaletteIndex(Color32 *pixel)
{
return(_rootNode.GetPaletteIndex(pixel, 0));
}