static void InitializeGradient(IRenderSurface display)
{
if (PreviousClientSize != display.Stride + display.Height)
{
PreviousClientSize = display.Stride + display.Height;
PixelBuffer = new int[display.Height * display.Width];
Color[] gradient = ColorUtility.CreateGradient(display.Width, ColorSet);
int[] initialLine = new int[display.Stride];
for (int index = 0; index < display.Stride; index++)
{
Color current = gradient[index];
initialLine[index] = BitConverter.ToInt32
(
new byte[] { current.B, current.G, current.R, 0 }, 0
);
}
unsafe
{
for (int line = 0; line < display.Height; line++)
{
fixed(int *ptr = &PixelBuffer[display.Stride * line])
{
Marshal.Copy(initialLine, 0, ( IntPtr )ptr, initialLine.Length);
}
}
}
}
}