/**
* CopyImageData
* Image copy directly from memory, to encoded UINT64
*/
internal unsafe void CopyImageData(Bitmap img)
{
// byte array to store image data
byte[] rawData = new byte[img.Width * Bytes_per_pixel * img.Height];
// locking image (fast access)
BitmapData lockModeImage = img.LockBits(new Rectangle(0, 0, Width, Height),
ImageLockMode.ReadOnly,
PixelFormat.Format32bppArgb);
// Byte Pointer (unsafe) then Marshal.Copy
IntPtr ptr = lockModeImage.Scan0;
Marshal.Copy(ptr, rawData, 0, rawData.Length);
int pixPtr = 0; // pixel pointer
// For all pixel in Image byte data
for (int p = 0; p < rawData.Length; p += Bytes_per_pixel)
{
// encode it
Pixels[pixPtr++] = PixelHandler.Encode(rawData[p++], // A
rawData[p++], // R
rawData[p++], // G
rawData[p++]); // B
}
// and lastly unlock image
img.UnlockBits(lockModeImage);
}
private void buttonConvert_Click(object sender, EventArgs e)
{
// get color from text fields
Color ArgbColor = Color.FromArgb(int.Parse(textArgb_A.Text),
int.Parse(textArgb_R.Text),
int.Parse(textArgb_G.Text),
int.Parse(textArgb_B.Text));
//Color ArgbColor = Color.FromKnownColor(KnownColor.Blue);
// convert
UInt64 colorToConvert = PixelHandler.ArgbToAhsv(ArgbColor);
float[] converted = new float[4];
converted = PixelHandler.Decode(colorToConvert);
decimal hue = (decimal)converted[1]; // keeping real value
// show converted data
textAhsv_A.Text = converted[PixelHandler.COLOR_A].ToString();
textAhsv_H.Text = (converted[PixelHandler.COLOR_H]).ToString() + "°";
textAhsv_S.Text = converted[PixelHandler.COLOR_S].ToString()
+ " (" + (converted[PixelHandler.COLOR_S] / 255 * 100).ToString() + "% )";
textAhsv_V.Text = converted[PixelHandler.COLOR_V].ToString()
+ " (" + (converted[PixelHandler.COLOR_V] / 255 * 100).ToString() + "% )";
}
public string ImageSample(int layer, int x1, int y1, int x2, int y2)
{
// shift pattern to apply
// see: PixelHandler.Color_A , PixelHandler.Color_S etc.
int compositeLayer = (layer != 0) ? PixelHandler.COLOR_V : layer;
float v;
string output = "";
// region
for (int y = y1; y < y2; y++)
{
for (int x = x1; x < x2; x++)
{
// convert to value from layered pattern
v = PixelHandler.GetValueFromUint64(GetPixel(x, y), layer);
output += "; " + v;
}
output += "\n";
}
return(output);
}
