我需要在c#中转换2个字节(16位),它是标准0-255值的A1R5G5B5类型的像素(所以1位alpha,5位红色,5位绿色,5位蓝色) 提前谢谢
答案 0 :(得分:2)
这是一个快速而肮脏的解决方案,但它应该适合您。
using System.Drawing;
class ShortColor
{
public bool Alpha { get; set; }
public byte Red { get; set; }
public byte Green { get; set; }
public byte Blue { get; set; }
public ShortColor(short value)
{
this.Alpha = (value & 0x8000) > 0;
this.Red = (byte)((value & 0x7C64) >> 10);
this.Green = (byte)((value & 0x3E0) >> 5);
this.Blue = (byte)((value & 0x001F));
}
public ShortColor(Color color)
{
this.Alpha = color.A != 0;
this.Red = (byte)(color.R / 8);
this.Green = (byte)(color.G / 8);
this.Blue = (byte)(color.B / 8);
}
public static explicit operator Color(ShortColor shortColor)
{
return Color.FromArgb(
shortColor.Alpha ? 255 : 0,
shortColor.Red * 8,
shortColor.Green * 8,
shortColor.Blue * 8
);
}
}