protected static void ApplyAcadCorrection(ArgbColor[] colors, ArgbColor backgroundColor)
{
int mask = DxfIndexedColor.smethod_12(backgroundColor);
int rgb1 = backgroundColor.Rgb;
for (int index = 1; index <= (int)byte.MaxValue; ++index)
{
int rgb2 = colors[index].Rgb;
if (DxfIndexedColor.smethod_11(rgb2 & mask, rgb1 & mask) < 29)
{
colors[index] = DxfIndexedColor.smethod_7(rgb2, rgb1, mask);
}
}
}
private static ArgbColor smethod_7(int rgb, int backgroundRgb, int mask)
{
int num1 = 0;
int val2 = 0;
if (mask == 16777215)
{
foreach (int num2 in DxfIndexedColor.int_4)
{
int num3 = (int)byte.MaxValue << num2;
int num4 = (int)((long)(rgb >> num2) & (long)byte.MaxValue) - (int)((long)(backgroundRgb >> num2) & (long)byte.MaxValue);
if (num4 >= 0 && num4 <= 29)
{
int val1 = DxfIndexedColor.smethod_8((int)((long)(rgb >> num2) & (long)byte.MaxValue));
if (Math.Abs(val1 - val2) < 6)
{
num1 |= num3;
val2 = Math.Max(val1, val2);
}
else if (val1 > val2)
{
val2 = val1;
num1 = num3;
}
}
}
}
else
{
if (DxfIndexedColor.smethod_12(ArgbColor.FromArgb(rgb, false)) == 16777215)
{
return(ArgbColor.FromArgb(rgb, false));
}
foreach (int num2 in DxfIndexedColor.int_4)
{
int num3 = (int)byte.MaxValue << num2;
if ((num3 & mask) != 0 && (int)((long)(rgb >> num2) & (long)byte.MaxValue) - (int)((long)(backgroundRgb >> num2) & (long)byte.MaxValue) >= 0)
{
num1 |= num3;
val2 = Math.Max(DxfIndexedColor.smethod_8((int)((long)(rgb >> num2) & (long)byte.MaxValue)), val2);
}
}
}
if (num1 == 0)
{
int num2 = 256;
foreach (int num3 in DxfIndexedColor.int_4)
{
int num4 = (int)byte.MaxValue << num3;
if ((num4 & mask) != 0)
{
int num5 = Math.Abs((int)(((long)(rgb >> num3) & (long)byte.MaxValue) - ((long)(backgroundRgb >> num3) & (long)byte.MaxValue)));
if (num5 <= num2 + 6)
{
num2 = num5;
int val1 = DxfIndexedColor.smethod_8((int)((long)(rgb >> num3) & (long)byte.MaxValue));
if (Math.Abs(val1 - val2) < 6)
{
num1 |= num4;
val2 = Math.Max(val1, val2);
}
else
{
val2 = val1;
num1 = num4;
}
}
}
}
}
int argb = 0;
foreach (int num2 in DxfIndexedColor.int_4)
{
int num3 = (int)byte.MaxValue << num2;
if ((num3 & mask) != 0 && (num3 & num1) != 0)
{
argb |= val2 << num2;
}
else
{
argb |= rgb & num3;
}
}
if (argb == 16711422)
{
argb = 16053492;
}
return(ArgbColor.FromArgb(argb, false));
}
