/// <summary>
/// Performs a color math operation by applying the values of an RGB pixel array to another.
/// The result is drawn over a specified destination pixel array, ignoring transparent pixels.
/// All arrays must be the same size.
/// </summary>
/// <param name="src">The pixels to apply to the operand array.</param>
/// <param name="operand">The RGB pixel array to perform the operation on.
/// The original referenced array is not modified during the operation.</param>
/// <param name="dst">The RGB pixel array draw the result over.</param>
/// <param name="width">The width, in pixels, of the pixel maps.</param>
/// <param name="height">The height, in pixels, of the pixel maps.</param>
/// <param name="halfIntensity">Indicates whether to add the pixels at half their RGB value.</param>
/// <param name="minusSubscreen">Indicates whether to subtract the pixels instead of adding them.</param>
public static void ColorMath(int[] src, int[] operand, int[] dst, int width, int height, bool halfIntensity, bool minusSubscreen)
{
if (src == null || operand == null || dst == null)
{
return;
}
int[] pixels = Bits.Copy(operand);
// Apply subscreen to priority layer pixels using color math
Do.ColorMath(src, pixels, width, height, halfIntensity, minusSubscreen);
// Draw color math result to this instance's RGB pixel array
Do.PixelsToPixels(pixels, dst, true);
}
/// <summary>
/// Performs a color math operation by applying the values of an RGB pixel array to another.
/// Both arrays must be the same size.
/// </summary>
/// <param name="src">The pixels to apply to the destination array.</param>
/// <param name="dst">The RGB pixel array to perform the operation on.</param>
/// <param name="width">The width, in pixels, of the pixel maps.</param>
/// <param name="height">The height, in pixels, of the pixel maps.</param>
/// <param name="halfIntensity">Indicates whether to add the pixels at half their RGB value.</param>
/// <param name="minusSubscreen">Indicates whether to subtract the pixels instead of adding them.</param>
public static void ColorMath(int[] src, int[] dst, int width, int height, bool halfIntensity, bool minusSubscreen)
{
if (src == null || dst == null)
{
return;
}
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
if (src[y * width + x] != 0 && dst[y * width + x] != 0)
{
dst[y * width + x] = Do.ColorMath(dst[y * width + x], src[y * width + x], halfIntensity, minusSubscreen);
}
}
}
}
