public List <PixelsBlock> GetBlocks()
{
var maxX = bitmap.Width / BlockSize;
var maxY = bitmap.Height / BlockSize;
var blocks = new List <PixelsBlock>();
for (int blockX = 0; blockX < maxX; blockX++)
{
for (int blockY = 0; blockY < maxY; blockY++)
{
var pixels = new List <Pixel>();
for (int x = blockX * BlockSize; x < blockX * BlockSize + BlockSize; x++)
{
for (int y = blockY * BlockSize; y < blockY * BlockSize + BlockSize; y++)
{
var color = bitmap.GetPixel(x, y);
pixels.Add(new Pixel(x, y, color));
}
}
var block = new PixelsBlock(pixels);
blocks.Add(block);
}
}
return(blocks);
}
public List <PixelsBlock> GetBlocksFast()
{
var blocks = new List <PixelsBlock>();
var imageData = GetImageData();
for (int blockX = 0; blockX < blockCountX; blockX++)
{
for (int blockY = 0; blockY < blockCountY; blockY++)
{
var pixels = new List <Pixel>();
for (int x = blockX * BlockSize; x < blockX * BlockSize + BlockSize; x++)
{
for (int y = blockY * BlockSize; y < blockY * BlockSize + BlockSize; y++)
{
//var color = bitmap.GetPixel(x, y);
var index = x * y;
byte b = imageData[index];
byte g = imageData[++index];
byte r = imageData[++index];
byte a = imageData[++index];
pixels.Add(new Pixel(x, y, Color.FromArgb(r, g, b)));
}
}
var block = new PixelsBlock(pixels);
blocks.Add(block);
}
}
return(blocks);
}
